MRG-C Clamp Type

Merits

Standard

Light weight, minimum moment of inertia, and high response
Also available in aluminum alloy and stainless steel
Available in three types: setscrew type, clamp type, and split type
Finished products featuring two different end bore diameters available in stock

Application

Servomotor	A
Stepping Motor	A
General-Purpose Motor	-
Encoder	A

Special Characteristics

Zero Backlash	A
High Torsional Stiffness	A
High Torque	B
Allowable Misalignment	-
Vibration Absorption	-
Electrical Insulation	-
Corrosion Resistant (All Stainless Steel)	A

A : Excellent B : Very Good

High precision rigid coupling XRP is available.

Configuration & Material

*Stock screws can be replaced with stainless steel screws. Please take advantage of our stainless steel screw option.
For more information please refer to Stainless Steel Screws [PDF 256KB]

Dimensions

unit:mm
Catalog Number	A	W	L	F	G	M	Wrench Torque (N·m)
MRG-16C	16	16	7.5	3.75	5	M2.5	1	MRG16C.dxf	MRG16C
MRG-20C	20	20	9.5	4.75	6.5	M2.5	1	MRG20C.dxf	MRG20C
MRG-25C	25	25	12	6	9	M3	1.5	MRG25C.dxf	MRG25C
MRG-32C	32	32	15.5	7.75	11	M4	2.5	MRG32C.dxf	MRG32C
MRGS-16C	16	16	7.5	3.75	5	M2.5	1	MRGS16C.dxf	MRGS16C
MRGS-20C	20	20	9.5	4.75	6.5	M2.5	1	MRGS20C.dxf	MRGS20C
MRGS-25C	25	25	12	6	9	M3	1.5	MRGS25C.dxf	MRGS25C
MRGS-32C	32	32	15.5	7.75	11	M4	2.5	MRGS32C.dxf	MRGS32C

Specifications

Catalog Number	Max. Bore (mm)	Rated Torque (N·m)	Max. Torque (N·m)	Max. Rotational Frequency (min^-1)	Moment of Inertia^* (kg·m²)	Mass^* (g)
MRG-16C	6	0.3	0.6	39000	3.0x10^-7	8.3
MRG-20C	8	0.5	1	31000	8.7x10^-7	15
MRG-25C	10	1	2	25000	2.7x10^-6	29
MRG-32C	14	2	4	19000	7.1x10^-6	51
MRGS-16C	6	0.3	0.6	39000	8.0x10^-7	22
MRGS-20C	8	0.5	1	31000	2.4x10^-6	41
MRGS-25C	10	1	2	25000	7.3x10^-6	80
MRGS-32C	14	2	4	19000	2.5x10^-5	160

*Adjustment of rated and maximum torque specifications for load fluctuations is not required.
For more detailed information, please refer to Selection Guidelines [PDF 171KB].
**Moment of inertia and mass figures based on maximum bore dimensions.

Stock Bores

Catalog Number	RoHS	Stock Bores D₁·D₂
MRG-16C	Compliant
MRG-20C	Compliant
MRG-25C	Compliant
MRG-32C	Compliant
MRGS-16C	Compliant
MRGS-20C	Compliant
MRGS-25C	Compliant
MRGS-32C	Compliant

●All products come with cap screws.
●Hubs with shaft bore diameters of φ4 or less have one setscrew.
●Recommended tolerance for shaft diameters is h6 and h7.
●Bore and keyway modifications are available on request. Please take advantage of our bore modification services.
For more information please refer to Custom Bore Modifications [PDF 495KB].