Use

• Water, hot water, coolant, etc. are injected at high pressure and used for cleaning and as a high-pressure coolant pump.

Features

• A special mechanism is adopted to prevent chattering.
• Simple structure ensures fewer malfunctions and easy maintenance.
• Can be installed in any orientation.
• Major components are made of stainless steel and ceramic, providing excellent durability.

Specifications

Model	Water Flow Rate (L/min)	Pressure (MPa)	Inlet	Outlet	Overflow Port	Body				Remarks Applications
						Conical Valve	Valve Seat	Material	O-ring
SV11	22	10	3/8	1/4	3/8	BC	SUS	SUS	NBR	For industrial water
SV11T	22	10	3/8	1/4	3/8	BC	SUS	SUS	NBR	For muddy water
SV11CT	22	10	3/8	1/4	3/8	BC	Ceramic	SUS	NBR	For muddy water
SV11SCT	22	10	3/8	1/4	3/8	SUS	Ceramic	SUS	FPM	For pure water and chemical solutions
SV1310	50	10	1/2	1/2	1/2	BC	SUS	SUS	NBR	For industrial water
SV1310C	50	10	1/2	1/2	1/2	BC	Ceramic	SUS	NBR	For industrial water
SV1310T	50	10	1/2	1/2	1/2	BC	SUS	SUS	NBR	For muddy water
SV1310CT	50	10	1/2	1/2	1/2	BC	Ceramic	SUS	NBR	For muddy water
SV1310S	50	10	1/2	1/2	1/2	SUS	Ceramic	SUS	FPM	For pure water and chemical solutions
SV1320	50	20	1/2	–	1/2	BC	Ceramic	SUS	NBR	For industrial water
SV1320S	50	20	1/2	–	1/2	SUS	Ceramic	SUS	FPM	For pure water and chemical solutions
SV1335	50	35	1/2	–	1/2	BC	Ceramic	SUS	NBR	For industrial water
SV1350	50	50	1/2	–	1/2	BC	Ceramic	SUS	NBR	For industrial water
SV1620-1/2	110	20	1/2	–	1	BC	Ceramic	SUS	NBR	For industrial water
SV1620-3/4	110	20	3/4	–	1	BC	Ceramic	SUS	NBR	For industrial water
SV1620S	110	20	1/2	–	1	SUS	Ceramic	SUS	NBR	For pure water and chemical solutions
SV2410	200	10	1	1	1 1/4	BC	Ceramic	SUS	NBR	For industrial water
SV2420	200	20	1	1	1 1/4	BC	Ceramic	SUS	NBR	For industrial water

Types with an “S” at the end have liquid-contacting parts made of stainless steel. Fully stainless steel versions are also available as custom orders.

---

Kouei is Distributor/Agent of Fukuda.
Other items of Fukuda
Request the quotation for Fukuda.

Use

• Water, hot water, coolant, etc. are injected at high pressure and used for cleaning and as a high-pressure coolant pump.

Features

• Long service life due to the use of ceramic plungers
• Double seal mechanism prevents water leakage
• Excellent pressure resistance performance
• Fully centering mechanism allows direct connection to engines and motors
• Low noise level
• Adoption of a special mechanism to stop chattering (pressure control valve)

STAINLESS STEEL MINI ACCUMULATOR

Stainless Steel Mini Accumulator Tokupilator

The accumulator functions to mitigate flow and pressure fluctuations within fluid circuits, reducing pulsations and shocks.

Features

• Compact and lightweight.
• Made from stainless steel, offering excellent chemical resistance and corrosion resistance.
• Exhibits stable performance through a special manufacturing process.

Main Applications

• Pulsation absorption
• Shock absorption
• Energy storage
• Balancing function

Features of Industrial High-Pressure Pumps

1. Seal Mechanism (No Lubrication Required, No Water Leakage)
If water leaks from the high-pressure side A seal, it is stopped by the low-pressure side B seal and recirculated to the suction side, ensuring no water leaks externally.
The oil-free mechanism is a key feature.
2. Ceramic Plunger (Replaceable)
The ceramic plunger has minimal wear and is resistant to scratches, which extends the lifespan of the seals.
The ceramic is securely fixed with a complete seal and locking agent, ensuring perfect alignment.
3. Seal (Long Lifespan & Easy Replacement)
The sealing section uses top-quality *T, N, B synthetic packings.
The backup system ensures the packings function effectively against high pressure.
4. Direct Drive (Easy Alignment)
The AD and D models can be directly connected to an engine or motor for use.
While designed for high-speed operation, they can also be used with pulley reduction.

Pumps for Specialized Applications
Our high-pressure pumps feature ceramic plungers for long service life. Additionally, we manufacture the following types of pumps:

High-Pressure Pumps for Ultrapure Water:
All liquid-contacting parts are made from SUS materials, and the seal sections use special materials.

Stainless Steel High-Pressure Pumps:
All liquid-contacting parts are made from SUS materials.

Seal Materials for Liquid-Contacting Parts:
NBR is standard. Options include fluoro rubber, PTFE, and high-molecular polyethylene, allowing compatibility with various liquids.

Caution
When using the pump, always fill the crank chamber with oil before operation.
Use either Engine Oil SAE 10W-30 or Industrial Lubricating Oil ISO VG100–150 Grade.
Hydraulic fluids are not suitable for use.

Reference: Pump Power Requirement Calculation Method
The power required for the pump is determined by the pump’s pressure and water intake.
It can be calculated using the formula below.
Please use this for motor selection.

HIGH-PRESSURE PUMP
For cleaning, spraying, pressure transfer, and more.

General-purpose cleaning machines
Compact cleaning units
Industrial high-pressure pumps

High-Pressure Plunger Pump Application Product Lineup
Cleaning
Spraying
Pressure transfer
Other applications

Specifications

Model	Rotation Speed (min⁻¹)	Water Intake (L/min)	Pressure (MPa)	Power Requirement (kW)	Oil Volume (L)	Weight (kg)	Inlet	Outlet	Shaft Diameter (mm)	Key (mm)	Outer Dimensions (L×W×H mm)
A-5007	600	7	50	7.3	1.1	28	1/2	3/8	25	7×7	414×322×239
R-2030	700	30.9	20	12.9	2.3	84	1	3/4	30	7×7	498×417×281
R-2150W	600	54	20	22.4	5.5	120	1 1/4	3/4	50	14×9	637×520×287
R-3036W	600	36.3	30	22.7	5.5	120	1	3/4	50	14×9	683×521×290
R-5022W	600	23.1	50	23.1	5.5	120	3/4	1/2	50	14×9	683×521×290
T40-7200W	600	186.7	7	27.2	8.5	170	2	1	55	16×10	733×605×410
T40-3050W	600	48.4	30	30.2	8.5	173	1 1/4	3/4	55	16×10	733×605×410
T40-5030W	600	29.9	50	31.1	8.5	173	1	1/2	55	16×10	733×605×410
T40-6025W	600	24.6	60	30.9	8.5	173	1	1/2	55	16×10	733×605×410

Pump & Accumulator

---

Kouei is Distributor/Agent of Fukuda.
Other items of Fukuda
Request the quotation for Fukuda.

Use

• Water, hot water, coolant, etc. are injected at high pressure and used for cleaning and as a high-pressure coolant pump.

Features

• Long service life due to the use of ceramic plungers
• Double seal mechanism prevents water leakage
• Excellent pressure resistance performance
• Fully centering mechanism allows direct connection to engines and motors
• Low noise level
• Adoption of a special mechanism to stop chattering (pressure control valve)

STAINLESS STEEL MINI ACCUMULATOR

Stainless Steel Mini Accumulator Tokupilator

The accumulator functions to mitigate flow and pressure fluctuations within fluid circuits, reducing pulsations and shocks.

Features

• Compact and lightweight.
• Made from stainless steel, offering excellent chemical resistance and corrosion resistance.
• Exhibits stable performance through a special manufacturing process.

Main Applications

• Pulsation absorption
• Shock absorption
• Energy storage
• Balancing function

Features of Industrial High-Pressure Pumps

1. Seal Mechanism (No Lubrication Required, No Water Leakage)
If water leaks from the high-pressure side A seal, it is stopped by the low-pressure side B seal and recirculated to the suction side, ensuring no water leaks externally.
The oil-free mechanism is a key feature.
2. Ceramic Plunger (Replaceable)
The ceramic plunger has minimal wear and is resistant to scratches, which extends the lifespan of the seals.
The ceramic is securely fixed with a complete seal and locking agent, ensuring perfect alignment.
3. Seal (Long Lifespan & Easy Replacement)
The sealing section uses top-quality *T, N, B synthetic packings.
The backup system ensures the packings function effectively against high pressure.
4. Direct Drive (Easy Alignment)
The AD and D models can be directly connected to an engine or motor for use.
While designed for high-speed operation, they can also be used with pulley reduction.

Pumps for Specialized Applications
Our high-pressure pumps feature ceramic plungers for long service life. Additionally, we manufacture the following types of pumps:

High-Pressure Pumps for Ultrapure Water:
All liquid-contacting parts are made from SUS materials, and the seal sections use special materials.

Stainless Steel High-Pressure Pumps:
All liquid-contacting parts are made from SUS materials.

Seal Materials for Liquid-Contacting Parts:
NBR is standard. Options include fluoro rubber, PTFE, and high-molecular polyethylene, allowing compatibility with various liquids.

Caution
When using the pump, always fill the crank chamber with oil before operation.
Use either Engine Oil SAE 10W-30 or Industrial Lubricating Oil ISO VG100–150 Grade.
Hydraulic fluids are not suitable for use.

Reference: Pump Power Requirement Calculation Method
The power required for the pump is determined by the pump’s pressure and water intake.
It can be calculated using the formula below.
Please use this for motor selection.

HIGH-PRESSURE PUMP
For cleaning, spraying, pressure transfer, and more.

General-purpose cleaning machines
Compact cleaning units
Industrial high-pressure pumps

High-Pressure Plunger Pump Application Product Lineup
Cleaning
Spraying
Pressure transfer
Other applications

Specifications

Model	Rotation Speed (min⁻¹)	Water Intake (L/min)	Pressure (MPa)	Power Requirement (kW)	Oil Volume (L)	Weight (kg)	Inlet	Outlet	Shaft Diameter (mm)	Key (mm)	Outer Dimensions (L×W×H mm)
A-713 (S)	1,100	13.0	7	1.9	0.35	6	1/2	3/8	18	5×5	237×231×147
A-1013 (S)	1,100	13.0	10	2.7	0.35	6	1/2	3/8	18	5×5	237×231×147
A-722 (S)	980	22.1	7	3.2	0.63	10	1/2	3/8	18	5×5	308×256×176
A-1018A (S)	1,000	18.1	10	3.8	0.63	10	1/2	3/8	18	5×5	308×256×176
A-1035 (S)	880	35.0	10	7.3	1.1	20	1	3/4	25	7×7	366×322×225
A-1520	850	20.0	15	6.2	1.1	20	1	3/4	25	7×7	366×322×225
A-1535A	880	35.0	15	11.9	1.1	20	1	3/4	25	7×7	366×322×225
A-2120A	850	20.0	20	8.3	1.1	20	1	3/4	25	7×7	366×322×225
A-2125A	850	24.3	20	10.1	1.1	25	1	3/4	25	7×7	379×322×222
A-770 (S)	650	72.8	7	10.6	2.3	35	1 1/4	1	30	7×7	504×407×269
R-1050 (S)	700	50.0	10	10.5	2.3	32	1 1/4	1/2, 3/4	30	7×7	500×408×240
R-1543	700	43.2	15	13.5	2.3	84	1	3/4	30	7×7	498×417×281
R-8110	600	110.0	10	22.9	5.5	75.5	1 1/2	1	50	14×9	637×520×287
R-7150 (S)	650	157.0	7	22.9	5.5	76	2	1	50	14×9	637×520×287

Note: Models with “(S)” at the end indicate specifications with stainless steel for liquid-contacting parts.

• ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

Use

• Water, hot water, coolant, etc. are injected at high pressure and used for cleaning and as a high-pressure coolant pump.

Features

• Long service life due to the use of ceramic plungers
• Double seal mechanism prevents water leakage
• Excellent pressure resistance performance
• Fully centering mechanism allows direct connection to engines and motors
• Low noise level
• Adoption of a special mechanism to stop chattering (pressure control valve)

STAINLESS STEEL MINI ACCUMULATOR

Stainless Steel Mini Accumulator Tokupilator

The accumulator functions to mitigate flow and pressure fluctuations within fluid circuits, reducing pulsations and shocks.

Features

• Compact and lightweight.
• Made from stainless steel, offering excellent chemical resistance and corrosion resistance.
• Exhibits stable performance through a special manufacturing process.

Main Applications

• Pulsation absorption
• Shock absorption
• Energy storage
• Balancing function

Features of Industrial High-Pressure Pumps

1. Seal Mechanism (No Lubrication Required, No Water Leakage)
If water leaks from the high-pressure side A seal, it is stopped by the low-pressure side B seal and recirculated to the suction side, ensuring no water leaks externally.
The oil-free mechanism is a key feature.
2. Ceramic Plunger (Replaceable)
The ceramic plunger has minimal wear and is resistant to scratches, which extends the lifespan of the seals.
The ceramic is securely fixed with a complete seal and locking agent, ensuring perfect alignment.
3. Seal (Long Lifespan & Easy Replacement)
The sealing section uses top-quality *T, N, B synthetic packings.
The backup system ensures the packings function effectively against high pressure.
4. Direct Drive (Easy Alignment)
The AD and D models can be directly connected to an engine or motor for use.
While designed for high-speed operation, they can also be used with pulley reduction.

Pumps for Specialized Applications
Our high-pressure pumps feature ceramic plungers for long service life. Additionally, we manufacture the following types of pumps:

High-Pressure Pumps for Ultrapure Water:
All liquid-contacting parts are made from SUS materials, and the seal sections use special materials.

Stainless Steel High-Pressure Pumps:
All liquid-contacting parts are made from SUS materials.

Seal Materials for Liquid-Contacting Parts:
NBR is standard. Options include fluoro rubber, PTFE, and high-molecular polyethylene, allowing compatibility with various liquids.

Caution
When using the pump, always fill the crank chamber with oil before operation.
Use either Engine Oil SAE 10W-30 or Industrial Lubricating Oil ISO VG100–150 Grade.
Hydraulic fluids are not suitable for use.

Reference: Pump Power Requirement Calculation Method
The power required for the pump is determined by the pump’s pressure and water intake.
It can be calculated using the formula below.
Please use this for motor selection.

HIGH-PRESSURE PUMP
For cleaning, spraying, pressure transfer, and more.

General-purpose cleaning machines
Compact cleaning units
Industrial high-pressure pumps

High-Pressure Plunger Pump Application Product Lineup
Cleaning
Spraying
Pressure transfer
Other applications

Specifications

Model	Rotation Speed (min⁻¹)	Water Intake (L/min)	Pressure (MPa)	Power Requirement (kW)	Oil Volume (L)	Weight (kg)	Inlet	Outlet	Shaft Diameter (mm)	Key (mm)	Outer Dimensions (L×W×H mm)
A-713 (S)	1,100	13.0	7	1.9	0.35	6	1/2	3/8	18	5×5	237×231×147
A-1013 (S)	1,100	13.0	10	2.7	0.35	6	1/2	3/8	18	5×5	237×231×147
A-722 (S)	980	22.1	7	3.2	0.63	10	1/2	3/8	18	5×5	308×256×176
A-1018A (S)	1,000	18.1	10	3.8	0.63	10	1/2	3/8	18	5×5	308×256×176
A-1035 (S)	880	35.0	10	7.3	1.1	20	1	3/4	25	7×7	366×322×225
A-1520	850	20.0	15	6.2	1.1	20	1	3/4	25	7×7	366×322×225
A-1535A	880	35.0	15	11.9	1.1	20	1	3/4	25	7×7	366×322×225
A-2120A	850	20.0	20	8.3	1.1	20	1	3/4	25	7×7	366×322×225
A-2125A	850	24.3	20	10.1	1.1	25	1	3/4	25	7×7	379×322×222
A-770 (S)	650	72.8	7	10.6	2.3	35	1 1/4	1	30	7×7	504×407×269
R-1050 (S)	700	50.0	10	10.5	2.3	32	1 1/4	1/2, 3/4	30	7×7	500×408×240
R-1543	700	43.2	15	13.5	2.3	84	1	3/4	30	7×7	498×417×281
R-8110	600	110.0	10	22.9	5.5	75.5	1 1/2	1	50	14×9	637×520×287
R-7150 (S)	650	157.0	7	22.9	5.5	76	2	1	50	14×9	637×520×287

Note: Models with “(S)” at the end indicate specifications with stainless steel for liquid-contacting parts.

• ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FKN (2RS)

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring keyway
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FKN… (2RS) (Ball shaft reception (with lubrication and seal) / keyway)

  

  • Specifications ◯
    Mounting size: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FKN… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FKN… 2RS is already enclosed)
    * FKN … RS is one-sided (freewheel side), FKN… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FKN (2RS)
  with keyway (IR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and polished
  Press fit- Roller bearing
  Keyway per DIN 6885, Sheet 3
  (Sizes 6203-6206)
  Keyway per DIN 6885, Sheet 1
  (Sizes 6207-6208)
  Tolerance: P9 with back clearance
  Integrated
  + Lubrication
  + Seal
  Lifetime grease lubrication*
  RS seals*
  * Series FKN 2RS (with RS seals)
  38
  Characteristics
  Dimensions
  Dimensions per bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FKN 2RS with seals
  Operative lifetime grease lubrication
  Series FKN without seals
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The employed RS seal reliably seal out grease and dust but are not
  suitable protection against the presence of liquids.
  Series FKN 6203-RS has a RS seal on one side only
  (RS seal on the freewheel side)

  FKN… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	r [mm]	b [mm]	t [mm]	Tnom [Nm]	nmax [min-1]	Cdyn. [N]	Cstat. [N]	Weight [kg]
  FKN 6203	17	40	12	1	5	12	53	10,800	6,245	3,441	0.07
  FKN 6203-RS	17	40	12	1	5	1.2	53	3,700	6,245	3,441	0.07
  FKN 6204	20	47	14	1.5	6	1.6	60	7,500	6,869	4,268	0.12
  FKN 6204-2RS	20	47	14	1.5	6	1.6	60	3,200	6,869	4,268	0.12
  FKN 6205	25	52	15	1.5	8	2	104	5,400	7,448	5,146	0.15
  FKN 6205-2RS	25	52	15	1.5	8	2	104	2,800	7,448	5,146	0.15
  FKN 6206	30	62	16	1.5	8	2	148	5,100	7,859	6,066	0.23
  FKN 6206-2RS	30	62	16	1.5	8	2	148	2,400	7,859	6,066	0.23
  FKN 6207	35	72	17	1.5	10	3.3	265	3,700	8,902	7,819	0.33
  FKN 6207-2RS	35	72	17	1.5	10	3.3	265	1,900	8,902	7,819	0.33
  FKN 6208	40	80	18	1.5	12	3.3	267	3,700	8,902	7,752	0.45
  FKN 6208-2RS	40	80	18	1.5	12	3.3	267	1,900	8,902	7,752	0.45

  All specifications for series FKN 2RS (with seals) and series FKN (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  and refers to the integrated insert element, not the key way.
  Rotation speed n for series FKN (without seals) = insert element’s inherent speed.
  Rotation speed n for series FKN 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.

use

• Printing Machinery
• Conveyor
• E-bikes (electrically power assisted bicycles)
• Compressor
• winch
• Generators
• Emergency power supply equipment and fire doors
• Wheelchair

Features

• Suggestions for backstops, indexes, and overrunning
• Space-saving and high torque
• High-speed swivel motion
• High-precision positioning
• Minimal moment of inertia
• Uniform load distribution due to individual sprag movements
• High design freedom with various options: with inner and outer rings
  , with axle reception, with keyway, with lubrication and seals

• summary

  • A one-way clutch is a clutch mechanism that transmits power in only one direction, and GMN uses a sprag-type mechanism.

  

  Idle direction Power transmission direction

  

  • The friction force generated when the uniquely designed sprag is upright around the entire circumference controls the direction of rotation. Since a static friction force is generated around the entire circumference, both high torque and space saving are achieved.

  

  The slight rotation of the tilt angle of δ minutes makes the splug stand upright.

  

  • There are two types of spring structures that fix the splugs, Z type and M type, and use the M type for applications where the angular frequency (angular frequency) is greater than 10 Hz.

  

  

  You can choose the best clutch from a variety of designs + options.

  Series: FK (2RS)

  

  Components:
  Insert element
  FE 400 Z2
  + Raceway rings
  Inner ring press fit
  Outer ring press fit
  + Ball bearing
  + Grease lubrication*
  + RS seals*
  Width:
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature:
  max. 140°C
  max. 170 °C on request
  max. 110°C (series 2RS)

  FK… (2RS) (Ball shaft reception (with lubrication and seal) / press-fitting)

  

  • Specifications ◯
    Mounting dimensions: 12/14/15/16/17/18 mm (axial direction)
    ◯ Shaft diameter: 17~40 mm
    ◯ Heat resistance: up to 140°C (FK… 2RS is up to 110°C)
    ◯ Lubrication: oil or grease (FK… 2RS is already enclosed)
    * FK … RS is one-sided (freewheel side), FK… The 2RS has seals on both sides.
  • Recommended Finish Tolerance
    ◯ Axis: N6
    ◯ Housing: N7

  Ball Bearing Freewheel
  Clutch Unit FK (2RS)
  for press fit (IR and OR)
  Components
  Freewheel clutch
  insert element FE 400 Z2
  + Raceways
  inner ring
  outer ring
  + Ball bearing
  Bearing steel, hardened and ground
  Press fit
  Press fit- Roller bearing
  + Lubrication
  Integrated
  Lifetime grease lubrication*
  + Seal
  RS seals*
  * Series FK 2RS (with RS seals)
  36
  Characteristics
  Dimensions
  Dimensions in accordance with bearing series 62 (DIN 625)
  Width
  12 / 14 / 15 / 16 / 17 / 18 mm
  Operating temperature
  max. 140°C
  Higher temperatures on request
  max. 110°C (design 2RS with RS seals)
  Lubrication
  Series FK 2RS with seals
  Operative lifetime grease lubrication
  Series FK without seal discs
  Oil or grease lubrication (Pg. 60–61)
  Delivered with corrosion protection.
  Installation
  Installation tolerances
  Shaft n6; hub N7
  Mating parts
  Hardening and grinding of the mating parts is not necessary.
  Thoroughly clean (grease free) the mating parts in the vicinity of
  the freewheel clutch as well as the freewheel clutch’s rings before
  making the press fit.
  Bearing
  The freewheel clutch includes a ball bearing.
  Additional external bearing support is not necessary.
  Press fit pressure
  Press fit pressure must not be applied to the balls.
  Clamping direction
  The arrow on the inner ring designates the inner ring’s clamping
  direction.
  Seals*
  The RS Seals reliably seal out grease and dust but are not suitable
  to protect against permanent higher liquid levels.
  Series FK 6203-RS has an RS seal on one side only
  (RS Seal on the freewheel side)

  FK… (2RS) Model Number List

  Model No.	d [mm]	D [mm]	W [mm]	Tnom [Nm]	nmax　 [min-1]	Cdyn. [N]	Cstat. [N]	r [mm]	Weight [kg]
  FK 6203	17	40	12	53	10,800	6,245	3,441	1.0	0.07
  FK 6203-RS	17	40	12	53	3,700	6,245	3,441	1.0	0.07
  FK 6204	20	47	14	60	7,500	6,869	4,268	1.5	0.12
  FK 6204-2RS	20	47	14	60	3,200	6,869	4,268	1.5	0.12
  FK 6205	25	52	15	104	5,400	7,448	5,146	1.5	0.15
  FK 6205-2RS	25	52	15	104	2,800	7,448	5,146	1.5	0.15
  FK 6206	30	62	16	148	5,100	7,859	6,066	1.5	0.23
  FK 6206-2RS	30	62	16	148	2,400	7,859	6,066	1.5	0.23
  FK 6207	35	72	17	265	3,700	8,902	7,819	2.7	0.34
  FK 6207-2RS	35	72	17	265	1,900	8,902	7,819	2.7	0.34
  FK 6208	40	80	18	267	3,700	8,902	7,752	2.7	0.45
  FK 6208-2RS	40	80	18	267	1,900	8,902	7,752	2.7	0.45
  FK 6304-2RS	20	52	15	104	2,800	7,448	5,146	1.5	0.17

  All specifications for series FK 2RS (with seals) and series FK (without seals)
  The specified nominal torque is based on sufficient stiffness of mating parts.
  Rotation speed n for series FK (without seals) = assembly unit’s inherent speed.
  Rotation speed n for series FK 2RS (with seals) = speed difference of mating parts.

  ---

  Kouei is Distributor/Agent of Fukuda.
  Other items of Fukuda
  Request the quotation for Fukuda.