Sakai UCRF Series Precision Compensation Coupling

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

Feature

Model	Allowable Torque (N·m)	Maximum Torque (N·m)	Allowable Thrust Load (N)	Allowable Eccentricity (mm)	Allowable Angular Misalignment (°)	Max Rotational Speed (min⁻¹)	Torsional Stiffness (N·m/rad)	Moment of Inertia (kg·m²)	Mass (kg)
UCRF-34	2.5	5.0	170	0.2	1	6000	0.59×10⁴	0.32×10⁻⁴	0.15
UCRF-38	5.0	10	300	0.2	1	6000	0.95×10⁴	0.54×10⁻⁴	0.21
UCRF-45	10	20	500	0.2	1	6000	1.91×10⁴	1.07×10⁻⁴	0.34
UCRF-55	20	40	850	0.2	1	6000	5.01×10⁴	3.12×10⁻⁴	0.64
UCRF-65	40	80	1450	0.2	1	6000	1.08×10⁵	6.31×10⁻⁴	0.99
UCRF-80	80	160	2350	0.2	1	6000	2.37×10⁵	1.73×10⁻³	1.80
UCRF-100	160	320	3750	0.2	1	6000	4.66×10⁵	5.40×10⁻³	3.62
UCRF-125	320	640	6000	0.2	1	6000	8.80×10⁵	1.59×10⁻²	6.99
UCRF-155	640	1280	9750	0.2	1	6000	1.66×10⁶	4.06×10⁻²	12.37

UCRF-125 and UCRF-155 are standard products.
The permissible torque indicates the case, the rotational speed is 1500 min⁻¹.
The maximum torque is the torque that can momentarily endure startup and braking.
The permissible thrust load represents the static permissible load, the load torque is zero.
The torsional rigidity value is for the metal part only.
Depending on the usage conditions, it may be possible to use it at an offset angle greater than the permissible value. Please contact us for more information.
The permissible torque and maximum torque do not take into account the strength of the drive shaft and key.

※ The metal of UCRF-125 and UCRF-155 is ordinary cold-rolled steel (SPCE).

Model	Arm Clamping Bolt Size	Tightening Torque (N·m)	Model	Arm Clamping Bolt Size	Tightening Torque (N·m)
UCR・UCRF-34	M2.5	0.5	UCR・UCRF-80	M6	7.2
UCR・UCRF-38	M3	0.9	UCR・UCRF-100	M8	17.4
UCR・UCRF-45	M3	0.9	UCR・UCRF-125	M10	34.5
UCR・UCRF-55	M4	2.1	UCR・UCRF-155	M12	60
UCR・UCRF-65	M5	4.2	UCR-200	M16	200