Sakai UCN-B Series Precision Compensation Coupling

Manufacturer: Sakai Manufacturing Co., Ltd.
Model: UCN-B Series

Feature

It is a heavy-duty specification with excellent rigidity and a streamlined body structure at a low cost.

(Dimensions: mm)

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)
UCN-45B	10	20	500	0.2	1	6000	1.91×10⁴	0.40×10⁻⁴	0.19
UCN-55B	20	40	850	0.2	1	6000	5.01×10⁴	1.13×10⁻³	0.36
UCN-65B	40	80	1450	0.2	1	6000	1.08×10⁵	2.54×10⁻³	0.57
UCN-80B	80	160	2350	0.2	1	6000	2.37×10⁵	6.89×10⁻³	0.97
UCN-100B	160	320	3750	0.2	1	6000	4.66×10⁵	2.24×10⁻²	02.09
UCN-125B	320	640	6000	0.2	1	6000	8.80×10⁵	7.08×10⁻²	4.38
UCN-155B	640	1280	9750	0.2	1	6000	1.66×10⁶	1.98×10⁻¹	7.67

Model	d	A	E	P	L	S	T	J	G	M
UCN-45B	8~16	45	31	20	48	24	24	17	14	M4
UCN-55B	10~24	55	38	25	56	28	28	20	16	M5/M4
UCN-65B	12~25	65	44	30	68	34	33	24.5	19	M6/M5
UCN-80B	12~35	80	57	39	80	40	36	29	22	M8/M6
UCN-100B	20~40	100	70	45	100	50	48	36	28	M10/M8
UCN-125B	25~50	125	88	61	120	60	61	42.5	35	M12
UCN-155B	35~60	155	112	76	141	70.5	71	50	41	M14

Standard Shaft Hole Diameter: d

Confirm delivery time for UCN-125B and UCN-155B, which are standard products.
Indicate the permissible torque at 1500 min⁻¹ rotational speed.
Transmit maximum torque momentarily startup and braking.
Represent the permissible thrust load as the static permissible load with zero load torque.
Apply the torsional rigidity value to the metal part only.
Represent the moment of inertia and mass as the maximum values at the largest shaft diameter.
Insert the key securely using the recommended method.
Use the recommended tolerance H6. (Accommodate a tolerance of +0.010 to +0.020 for a 35 mm shaft diameter.)
Use at an offset or angle greater than the permissible value if conditions allow. Contact us for more information.
The shaft diameter of UCN-55B is 24 mm, with a key width of 4 mm.