The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
Print Back
    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 MOL25-CENTER MEMBER

Coupling Type

 N/A Oldham

Coupling Size

 N/A MOL25

Material

 N/A Polyacetal

Insert Style

 N/A Jaw Type

Color

 N/A Blue

Weight

 N/A 0.01 oz

Dimensional Data

Outside Diameter

 N/A 0.984 in25.00 mm

Overall Length

 N/A 0.669 in

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 0.64776 in³

Performance Data

Normal Temperature Range

 N/A -4 to 176 ºF

Max. Operating Temperature

 N/A 176.00 ºF

Nominal Torque

 N/A 17.70 in·lb

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.