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    The MD (mini disc) Series coupling features a higher torque capacity over elastomeric coupling types. The MD Series one piece clamping design allows for easy removal and assembly. The Aluminum hubs and stainless steel disc materials allow for excellent resistance to oil and other chemicals.

    The MD Series design offers moderate torsional stiffness for applications requiring repeatability. The MD Series also offers up to .020 inches of axial misalignment.
Unit of Measure

Specifications

Description 

MD40C-CP-5/8X5/8

Coupling Size

MD40C

Bore Type

Finished Bore

Type

Mini Disc Coupling

Disc Material

Stainless Steel

Hub Material

Aluminum

Style

Clamp Screw

Application

Motion Control

Weight

0.22 oz

Weight (Complete Coupling w/ Min. Bores)

3.53 oz

Dimensional Data

Bore A

0.625 in

Bore B

0.625 in

Overall Length

1.732 in44.00 mm

Keyway Size

No Keyway

Outside Diameter

1.575 in40.00 mm

Min. Bore (Dimensions ID1/ID2)

0.315 in8.00 mm

Max. Bore (Dimensions ID1/ID2)

0.787 in20.00 mm

Length thru Bore

0.551 in14.00 mm

Clamp Screw Size

M4

Cubic inches

4.29644 in³

Performance Data

Max. Operating Temperature

300.00 ºF

Max. Speed

5000 rpm

Nominal Torque

31.00 in·lb

Angular Misalignment

1.50 º

Axial Misalignment

± 0.20 in

Parallel Misalignment

0.006 in

Moment of Inertia

0.0650 lb·in²

Torsional Stiffness

12390.00 in·lb/rad

Features

Features 

  • Zero backlash design
  • Moderate torsional stiffness
  • Aluminum hubs with stainless steel discs
  • Moderate-high torque capabilities

Notes

Notes 

  • Nominal torque, torsional stiffness, weight and moment of inertia are based on minimum bore size.
  • Various hub diameters available to accommodate different size bore diameters.