Menu
Smarter Bearing Selection Is Here

The Timken ® Syber ® Bearing System Designer Tool now features Smart Selection, enabling users to find the right bearing faster by filtering options based on target life and key dimensions.

Learn More
Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

View Video
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information
    The Lovejoy Oldham coupling is a precision engineered, torsionally stiff, three-piece coupling suitable for a great many applications ranging from incremental control of fluid valves to highly dynamic drives in closed loop servo systems. It accommodates misalignment mechanically through a floating disc that engages tenons machined out of the hubs. As the coupling rotates, the floating disc aligns with each hub alternately to an extent demanded by the alignment error. Because parallel misalignment is accommodated by lateral displacement, the Lovejoy Oldham coupling can handle severe alignment errors within a short space envelope. This is a valuable feature in densely packaged and blind assemblies, or where misalignment can accelerate the erosion of shaft bearings. The Lovejoy Oldham coupling features raised dots on both sides of the floating disc which act as an effective spacer.

    The dots keep the face of the tenon from contacting the bottom of the floating disc and allows the coupling greater angular misalignment capability. A very important effect is that the spacer dots will greatly reduce the bending load on the shafts because of the freedom of the floating disc.
    The MOL Coupling consists of two hubs and one center member.
Unit of Measure

Specifications

Description 

 N/A MOL25C-HUB-8MM-NKW

Coupling Type

 N/A Oldham, Three Piece Design w/ Insert

Coupling Size

 N/A MOL25C

Material

 N/A Aluminum

Style

 N/A Clamp Screw

Color

 N/A Silver/Metallic

Weight

 N/A 0.04 oz

Weight (Complete Coupling w/ Min. Bores)

 N/A 1.40 oz40.00 g

Dimensional Data

Bore Size

 N/A 8.00 mm

Clamp Screw Size

 N/A M3

Keyway Size

 N/A No Keyway

Length thru Bore

 N/A 0.650 in16.50 mm

Outside Diameter

 N/A 0.984 in25.00 mm

Overall Coupling Length

 N/A 1.535 in39.00 mm

Min. Bore (Dimensions ID1/ID2)

 N/A 0.197 in5.00 mm

Max. Bore (Dimensions ID1/ID2)

 N/A 0.394 in10.00 mm

Cubic inches

 N/A 0.62937 in³

Performance Data

Max. Operating Temperature

 N/A 176.00 ºF80.00 ºC

Nominal Torque

 N/A 17.70 in·lb

Max Speed

 N/A 6100.00 rpm

Angular Misalignment

 N/A 3.00 º

Parallel Misalignment

 N/A 0.800 in

Torsional Stiffness

 N/A 1770.00 in·lb/rad

Moment of Inertia

 N/A 0.011 lb·in²

Features

Features 

 N/A
  • High torsional stiffness
  • Maximum temperature 176° F (80° C)
  • Aluminum hubs with a Polyacetal insert
  • Available in setscrew or clamping style hubs

Notes

Notes 

 N/A
  • Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.