Sakai UCNF-B Series Precision Compensation Coupling

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

Feature

By combining flange specifications and bolt clamp specifications, simple shaft coupling is possible.

(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)
UCNF-45B	10	20	500	0.2	1	6000	1.91×10⁴	0.92×10⁻⁴	0.24
UCNF-55B	20	40	850	0.2	1	6000	5.01×10⁴	2.71×10⁻⁴	0.46
UCNF-65B	40	80	1450	0.2	1	6000	1.08×10⁵	5.48×10⁻⁴	0.71
UCNF-80B	80	160	2350	0.2	1	6000	2.37×10⁵	1.48×10⁻³	1.21
UCNF-100B	160	320	3750	0.2	1	6000	4.66×10⁵	4.66×10⁻³	2.56
UCNF-125B	320	640	6000	0.2	1	6000	8.80×10⁵	1.36×10⁻²	5.04
UCNF-155B	640	1280	9750	0.2	1	6000	1.66×10⁶	3.37×10⁻²	8.47

Model	d	A	B	C	D	E	P	L	S	T	J	G	H	N	M
UCNF-45B	8~16	62	26	54	45	31	20	39	24	15	17	6	6.5	5.5	M4
UCNF-55B	10~24	78	32	66	55	38	25	46	28	18	20	7	8	6.6	M5
UCNF-65B	12~25	88	38	76	65	44	30	56	34	22	24.5	8	10	6.6	M6/M5
UCNF-80B	12~35	110	50	95	80	57	39	65	40	25	29	9	11	9	M8/M6
UCNF-100B	20~40	136	60	118	100	70	45	82	50	32	36	12	15	11	M10/M8
UCNF-125B	25~50	166	70	145	125	88	61	100	60	40	42.5	15	18	14	M12
UCNF-155B	35~60	198	90	175	155	112	76	116	70.5	45.5	50	20.5	20.5	14	M14

Standard Shaft Hole Diameter: d

UCNF-125B and UCNF-155B are standard products (delivery time confirmation required).
The allowable torque is shown for the rotational speed is 1500 min-1.
The maximum torque is the torque that can be transmitted instantaneously startup and braking.
The allowable thrust load is the static allowable thrust load, the load torque is zero.
The torsional stiffness is the value for the metal part only.
The moment of inertia and mass are shown for the maximum shaft hole diameter.
Depending on the usage conditions, it may be possible to use with greater eccentricity or angular misalignment than the allowable values.
Please ensure to insert the mounting shaft correctly according to the specified method.
The recommended shaft tolerance is h6. (A tolerance of h6~h7 can be accommodated for shaft diameters of 35mm or more.)
For UCNF-55B, the standard shaft hole diameter of φ24 will become φ40mm.