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 parallelmore
Unit of Measure

Specifications

Description 

MOL25C-HUB-6MM-NKW

Coupling Type

Oldham, Three Piece Design w/ Insert

Coupling Size

MOL25C

Material

Aluminum

Style

Clamp Screw

Color

Silver/Metallic

Weight

0.04 oz

Weight (Complete Coupling w/ Min. Bores)

1.40 oz40.00 g

Dimensional Data

Bore Size

6.00 mm

Clamp Screw Size

M3

Keyway Size

No Keyway

Length thru Bore

0.650 in16.50 mm

Outside Diameter

0.984 in25.00 mm

Overall Coupling Length

1.535 in39.00 mm

Min. Bore (Dimensions ID1/ID2)

0.197 in5.00 mm

Max. Bore (Dimensions ID1/ID2)

0.394 in10.00 mm

Cubic inches

0.62937 in³

Performance Data

Max. Operating Temperature

176.00 ºF80.00 ºC

Nominal Torque

17.70 in·lb

Max Speed

6100.00 rpm

Angular Misalignment

3.00 º

Parallel Misalignment

0.800 in

Torsional Stiffness

1770.00 in·lb/rad

Moment of Inertia

0.011 lb·in²

Features

Features 

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

Notes

Notes 

  • Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.