Oldham Type Flexible Coupling

MOHS (VESPEL®)

Merits

Heat Resistant. Operational Temperature: -20℃~200℃
Clean
High Allowable Misalignment

Can be used in environments used for production of goods requiring cleanliness, heat resistance, and chemical resistance such as FPD and semiconductor production equipment
Oldham type flexible coupling
Spacer employs DupontTM's VESPEL® Excellene in heat resistance and chemical resistance Microscopic levels of outgas
Operational Temperature : -20℃~200℃
Slippage between hubs and spacer allows high parallel and angular misalignments
Minimized load on shaft caused by misalignments
High Torsional Stiffness and High Response
Simple configuration enables ease of assembly
Protruded spacer design enables high allowable angular misalignment
Finished products featuring two different end bore diameters available in stock

Application

Servomotor	-
Stepping Motor	B
General-purpose Motor	A
Encoder	-

Features

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

A : Excellent B : Very Good

Eccentric Reaction Force / Changes in Static Torsional Stiffness Caused by Temperature / Natural Frequency / Analysis of Outgas / Characteristics of VESPEL® / Chemical Resistance of VESPEL® [PDF 146KB]

Configuration & Material

*Dupont^TM and VESPEL® are registered trademarks of E. I. du Pont de Nemours and Company. Color may vary according to the production lot.

Dimensions

Specifications

unit:mm
Catalog Number	A	L	W	E	F	G	M	Wrench Torque (N·m)
MOHS-19C	19	7	22.1	10	3.5	6.5	M2.5	0.5	MOHS19C.dxf	MOHS19C
MOHS-26C	25.4	8	27.2	14	4	9	M3	0.7	MOHS26C.dxf	MOHS26C
MOHS-32C	31.7	10	33.3	18	5	11	M4	1.2	MOHS32C.dxf	MOHS32C

Catalog Number	Max. Bore (mm)	Rated Torque (N·m)	Max. Torque (N·m)	Max. Rotational Frequency (min^-1)	Moment of Inertia^* (kg·m²)	Static Torsional Stiffness (N·m/rad)	Errors of Eccentricity (mm)	Errors of Angularity (°)	Mass^* (g)
MOHS-19C	8	0.4	0.8	900	1.4x10^-6	160	1.3	2	28
MOHS-26C	10	1.2	2.4	900	5.5x10^-6	220	1.5	2	61
MOHS-32C	14	2.2	4.4	900	1.6x10^-5	600	2.0	2	110

*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
MOHS-19C	Compliant
MOHS-26C	Compliant
MOHS-32C	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].