Configuration/Characteristics/Material

Material

Part name	Material	Surface Treatment
Hub	A2017	Anodized Aluminum Coating
Spacer	Polyacetal	-
Cap Screw	SCM435	Black Oxide Coating*

*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].

Characteristics

Recipient of the 1991 Ministry of Economy, Trade and Industry Good Design Award

Oldham type flexible coupling

Slippage between hubs and spacer allows high parallel and angular misalignments

Minimized load on shaft caused by misalignments

Simple configuration enables ease of assembly

Excellent electrical insulation

Operational temperature: -20℃~80℃

Finished products featuring two different end bore diameters available in stock.

The protruded spacer design enables high allowable angular misalignment and minimized load on shafts.

Oldham coupling with no protrusions feature low allowable misalignment (1~1.5°) due to interference between the spacer and hubs at the proximity of A bending moment is generated as well.
The MOL series features a high maximum angular misalignment (3°), enabled by the protrusions which act as points of support.
No bending moment is generated and the shaft load is minimized.

We also manufacture a compact oldham type coupling MOS.

Eccentric Reaction Force / Changes in Static Torsional Stiffness Caused by Temperature / Natural Frequency [PDF 111KB]

Application

Servomotor	-
Stepping Motor	●
General-Purpose Motor	◎
Encoder	-

Special Characteristics

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

◎：Excellent
●：Very Good