Dimensions / Performance

Model	CAD	Size (±0.3mm)				Screw		Rated Torque (N·m)	Max. Torque (N·m)	Max. rpm (min-1)	Moment of Inertia (kg·m2)	Static Torsional Stiffness (N·m/rad)	Mass (g)	Permissible Misalignment
		D	L	L1	F	Size	Fastening Torque (N·m)							Angular (˚)	Parallel (mm)	End- play (mm)
SJCM-55C-BL		55	59.3	20.8	10.1	M6	13	60	120	4,000	1.3×10-4	3,000	280	1	0.09	-0.5 ~ +1.4
SJCM-55C-GR		55	59.3	20.8	10.1	M6	13	60	120	4,000	1.3×10-4	4,500	280	1	0.09	-0.5 ~ +1.4
SJCM-55C-RD		55	59.3	20.8	10.1	M6	13	75	150	4,000	1.3×10-4	6,000	280	1	0.06	-0.5 ~ +1.4
SJCM-65C-BL		65	63.3	21.8	10.5	M8	30	150	300	3,500	2.6×10-4	6,500	400	1	0.1	-0.6 ~ +1.5
SJCM-65C-GR		65	63.3	21.8	10.5	M8	30	150	300	3,500	2.6×10-4	8,500	400	1	0.1	-0.6 ~ +1.5
SJCM-65C-RD		65	63.3	21.8	10.5	M8	30	180	360	3,500	2.6×10-4	10,000	400	1	0.08	-0.6 ~ +1.5
SJCM-80C-BL		80	87.2	31.7	15.5	M10	50	300	600	3,000	8.7×10-4	8,000	860	1	0.1	-0.6 ~ +1.5
SJCM-80C-GR		80	87.2	31.7	15.5	M10	50	300	600	3,000	8.7×10-4	12,000	860	1	0.1	-0.6 ~ +1.5
SJCM-80C-RD		80	87.2	31.7	15.5	M10	50	380	760	3,000	8.7×10-4	14,000	860	1	0.08	-0.6 ~ +1.5
SJCM-100C-BL		104	96.2	34.2	16.9	M12	90	500	1,000	3,000	3.1×10-3	24,000	1,700	1	0.15	-0.6 ~ +2.0
SJCM-100C-GR		104	96.2	34.2	16.9	M12	90	500	1,000	3,000	3.1×10-3	30,000	1,700	1	0.15	-0.6 ~ +2.0
SJCM-100C-RD		104	96.2	34.2	16.9	M12	90	600	1,200	3,000	3.1×10-3	40,000	1,700	1	0.1	-0.6 ~ +2.0

• The Moment of Inertia and Mass values are based on products with max. Inner diameter.
• Please modify rated/max. torque value with temperature correction factor when it’s higher than 30ºC.
• Max. torque/rated torque is the value regarding to a coupling’s self-durability and is not related to slip-torque between the coupling bore and the shaft.

Standard Inner Diameter (ID)

Model	Standard Inner Diameter (d1, d2) (mm)
	12	14	15	16	18	19	20	22	24	25	26	28	30	32	35	40	45	50	60
SJCM-55C	●	●	●	●	●	●	●	●	●	●	●	●
SJCM-65C			●	●	●	●	●	●	●	●	●	●	●	●	●
SJCM-80C			●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
SJCM-100C							●	●	●	●	●	●	●	●	●	●	●	●	●

• The recommended shaft tolerance is h7.
• Custom process (e.g. non-standard Inner diameter, special tolerance etc.) is also available upon a special request in prior to order placement.
• Keyway is available. (Optional)
• Side-clamp Hub Split is NOT available

Slip Torque

• The below table shows the actual permissible torque values when the slip torque value is lower than the coupling’s max. torque value.
• If the slip torque value is lower than the coupling’s max. torque value, please check and compare between the slip torque in the below table and the operating torque value of the connected motor. It is safer to size up the coupling or use a key/keyway when the slip torque value is lower than the motor’s operating torque.
• The below slip torque values may be subject to change according to different testing conditions. (e.g. shaft tolerance, surface roughness, surface treatment or acceleration/deceleration of driving shafts). On the other hand, the values could be affected when a different kind of fastening screw is used (body material or surface treatment). Therefore, we recommend you test under the same conditions before mounting.

Model	Max. Torque (N·m) RD Sleeve	Slip Torque (N·m) by Inner Diameter (d1, d2)
		12	14	15	16	18	19	20	22	24	25	26	28	30	32	35	40	45	50	60
SJCM-55C	150	25	30	32	34	38	40	42	50	52	54	56	60
SJCM-65C	360			55	60	70	75	80	85	94	98	103	110	118	125	130
SJCM-80C	760			90	100	110	118	125	130	150	155	160	175	185	200	220	250	280
SJCM-100C	1200							200	230	260	290	320	360	390	410	435	450	460	480	550