Sakai TCFFD Series Precision Spring Coupling

Manufacturer: Sakai Manufacturing Co., Ltd.
Model: TCFFD Series

Feature

They unitized and launched the plate spring part of the TCD-B series. It is now compatible with a wider range of combinations.

Example Of Use

(Dimensions: mm)

Model	Allowable Torque (N·m)	Allowable Eccentricity (mm)	Allowable Angular Misalignment (°)	Allowable Axial Displacement (mm)	Max Rotational Speed (min⁻¹)	Torsional Stiffness (N·m/rad)	Axial Spring Constant (N/mm)	Moment of Inertia (kg·m²)	Mass (kg)
TCFFD-65	80	0.2	1	±0.92	10000	1.14×10⁵	66	3.49×10⁻⁴	0.5
TCFFD-80	140	0.23	1	±1.15	10000	1.61×10⁵	45	9.82×10⁻⁴	0.91
TCFFD-93	250	0.3	1	±1.27	10000	3.40×10⁵	52	2.45×10⁻³	1.74
TCFFD-100	320	0.31	1	±1.41	10000	5.15×10⁵	75	3.33×10⁻³	2

Model	A	B	C	P	L	S	J	G	M
TCFFD-65	65	38	57	36	35	17.5	7	21	M4
TCFFD-80	80	50	70	46	44	22	9.5	25	M5
TCFFD-93	93	54	80	51	56	28	12	32	M6
TCFFD-100	100	62	85	56	58	29	12	34	M6

(Unit: mm)

Model	d	A	E	P	L	S	J	H	G	N	M
TCFFD-65B	14~25	65	48	36	83	41.5	28	31	21	M4	M8/M6
TCFFD-80B	15~35	80	59	46	105	52.5	35.5	40	25	M5	M10/M8
TCFFD-93B	19~35	93	66	51	126	63	40	47	32	M6	M10
TCFFD-100B	20~40	100	71	56	132	66	42	49	34	M6	M12/M10

The dimensions of TCFFD-B/K follow those of TCFFD-A.
The allowable radial direction displacement represents the case eccentricity and tilt angle are zero.
The eccentricity and tilt angle act simultaneously, the allowable tilt angle has restricted.
The maximum rotational speed does not consider dynamic balance.
For bolt clamp hubs, the recommended shaft tolerance is h6.
For bolt clamp hubs, after pushing the shaft into the designated position, tighten two of the hub’s clamping bolts alternately in 2-3 steps to the specified tightening torque. Tighten the other two clamping bolts on the opposite side in the same manner.

They unitized the double plate spring part for high torque transmission. You can combine it with any type of shaft coupling method.

Example Of Use

(Dimensions: mm)

Model	Allowable Torque (N·m)	Allowable Eccentricity (mm)	Allowable Angular Misalignment (°)	Allowable Axial Displacement (mm)	Max Rotational Speed (min⁻¹)	Torsional Stiffness (N·m/rad)	Axial Spring Constant (N/mm)	Moment of Inertia (kg·m²)	Mass (kg)
TCFFD-125	800	0.59	1	±1.80	10000	1.84×10⁶	480	9.21×10⁻³	3.64
TCFFD-155	1500	0.75	1	±2.20	8000	3.28×10⁶	550	2.77×10⁻²	7.3
TCFFD-200	3200	0.87	1	±2.93	8000	29.2×10⁶	325	8.32×10⁻²	12.14

Model	A	B	C	P	L	S	J	G	M
TCFFD-125	125	76	108	66	68	34	13	42	M8
TCFFD-155	155	98	135	86	86	43	17	52	M10
TCFFD-200	200	125	176	125	100	50	19	82	M12

(Unit: mm)

Model	d	A	E	P	L	S	J	H	G	N	M
TCFFD-125B	30~55	125	88	66	174	87	57	66	42	M8	M10
TCFFD-155B	40~70	155	115	86	210	105	66	79	52	M10	M12
TCFFD-200B	60~100	200	153	125	246	123	78	92	62	M12	M14

The dimensions of TCFFD-B/K follow those of TCFFD-A.
The allowable radial direction displacement represents the case eccentricity and tilt angle are zero.
If eccentricity and tilt angle act simultaneously, the allowable tilt angle has restricted.
The maximum rotational speed does not consider dynamic balance.
For bolt clamp hubs, the recommended shaft tolerance is h6.
For bolt clamp hubs, after pushing the shaft into the designated position, tighten the four clamping bolts on one side alternately in 2-3 steps to the specified tightening torque. Tighten the four clamping bolts on the opposite side in the same manner.