Dimensions / Performance

Set-screw (SRBM-no mark)

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)
SRBM-12		12.7	13	4.5	2.2	M2.5	0.5	0.2	0.4	40,000	8.0×10-8	60	3.2	1	-	±0.15
SRBM-16		16	14	5	2.4	M3	0.7	0.4	0.8	30,000	2.2×10-7	130	5.8	1	-	±0.15
SRBM-19		19.1	17	6.3	3.1	M3	0.7	0.6	1.2	24,000	5.3×10-7	160	10	1	-	±0.15
SRBM-22		22.2	19	6.9	3.3	M4	1.7	1	2	20,000	1.1×10-6	180	14	1	-	±0.15
SRBM-26		26.2	22	7.9	3.8	M4	1.7	2	4	18,000	2.5×10-6	480	25	1	-	±0.15
SRBM-32		31.8	29	10.5	5.1	M5	4	3.8	7.6	16,000	6.9×10-6	780	44.9	1	-	±0.15

• The Moment of Inertia and Mass values are based on products with max. Inner diameter.
• 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. (Set-screw type is usually less durable than other clamping method, thus please consider it has a complementary option e.g. keyway along with.)

Side-clamp (SRBM-C)

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)
SRBM-12C		12.7	14	5	2.5	M2	0.5	0.2	0.4	35,000	7.9×10-8	60	3.2	1	-	±0.15
SRBM-16C		16	16	6	3	M2.6	1	0.4	0.8	27,000	2.3×10-7	130	6.3	1	-	±0.15
SRBM-19C		19.1	17	6.3	3.1	M2.6	1	0.6	1.2	20,000	5.0×10-7	160	9.2	1	-	±0.15
SRBM-22C		22.2	20	7.4	3.7	M3	1.7	1	2	18,000	1.1×10-6	180	15	1	-	±0.15
SRBM-26C		26.2	23	8.4	4.1	M3	1.7	2	4	17,000	2.5×10-6	480	25	1	-	±0.15
SRBM-32C		31.8	30	11	5.4	M4	3.5	3.8	7.6	14,000	6.8×10-6	780	44	1	-	±0.15

• The Moment of Inertia and Mass values are based on products with max. Inner diameter.
• 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)
	3	4	5	6	6.35	8	9.525	10	11	12	14	15
SRBM-12□	●	●	●
SRBM-16□	●	●	●	●
SRBM-19□		●	●	●	●	●
SRBM-22□			●	●	●	●	●	●
SRBM-26□			●	●	●	●	●	●	●	●
SRBM-32□						●	●	●	●	●	●	●

• 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)

Slip Torque (Side-clamp type only)

• 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)	Slip Torque (N·m) by Inner Diameter (d1, d2)
		5	6	6.35	8	9.525	10	11	12	14	15	16	18
SRBM-26C	4	2.2	2.8	2.8	3.5
SRBM-32C	7.6				5.6	7