Rigid Coupling – Long Version

MLR-V Semi-Split Type

Merits

Long Type

Long Type Rigid Coupling
Can be used as a joint to connect shafts
Also available in aluminum alloy and stainless steel
Clam type and semi-split type also available
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.
Semi-Split Type
Semi-split type features a combination of one clamp type hub and one split type hub. This fixing style enhances ease of assembly, because it is possible to attach on one shaft without sliding the other on the clamp type hub.

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	L	W	F₁	F₂	G	M	Wrench Torque (N·m)
MLR -16V	16	11	22	2.5	5.5	5	M2	0.5	MLR16V.dxf	MLR16V
MLR -20V	20	12	24	2.5	6	7	M2	0.5	MLR20V.dxf	MLR20V
MLR -25V	25	18	36	4.5	9	9	M2.5	1	MLR25V.dxf	MLR25V
MLR -32V	32	20	40	4	10	11	M3	1.5	MLR32V.dxf	MLR32V
MLRS-16V	16	11	22	2.5	5.5	5	M2	0.5	MLRS16V.dxf	MLRS16V
MLRS-20V	20	12	24	2.5	6	7	M2	0.5	MLRS20V.dxf	MLRS20V
MLRS-25V	25	18	36	4.5	9	9	M2.5	1	MLRS25V.dxf	MLRS25V
MLRS-32V	32	20	40	4	10	11	M3	1.5	MLRS32V.dxf	MLRS32V

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)
MLR -16V	6	0.3	0.6	39000	3.5x10^-7	10
MLR -20V	8	0.5	1	31000	9.5x10^-7	18
MLR -25V	12	1	2	25000	3.4x10^-6	38
MLR -32V	15	2	4	19000	1.0x10^-5	70
MLRS-16V	6	0.3	0.6	39000	9.1x10^-7	25
MLRS-20V	8	0.5	1	31000	2.6x10^-6	45
MLRS-25V	12	1	2	25000	9.3x10^-6	100
MLRS-32V	15	2	4	19000	2.8x10^-5	180

*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
MLR -16V	Compliant
MLR -20V	Compliant
MLR -25V	Compliant
MLR -32V	Compliant
MLRS-16V	Compliant
MLRS-20V	Compliant
MLRS-25V	Compliant
MLRS-32V	Compliant

●All products come with cap screws.
●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].