3D CAD and 2D Drawings

Find and download 3D CAD and 2D drawings for key Timken products.

Batch CAD Cart (0)
  • Cart is empty
    The MDS (mini disc spacer) Series coupling features a higher parallel misalignment capacity over standard MD Series at .006 inches. The MDS Series also has the highest parallel misalignment at .012 inches and angular misalignment at 2° of any of the mini disc couplings.
Unit of Measure



N/A MDS40C CPLG 3/8X1/2

Coupling Size


Bore Type

N/A Finished Bore


N/A Mini Disc Coupling

Disc Material

N/A Stainless Steel

Hub Material

N/A Aluminum


N/A Clamp Screw


N/A Motion Control


N/A 0.18 oz

Weight (Complete Coupling w/ Min. Bores)

N/A 2.86 oz

Dimensional Data

Bore A

N/A 0.375 in

Bore B

N/A 0.500 in

Overall Length

N/A 1.811 in46.00 mm

Keyway Size

N/A No Keyway

Outside Diameter

N/A 1.575 in40.00 mm

Min. Bore (Dimensions ID1/ID2)

N/A 0.315 in8.00 mm

Max. Bore (Dimensions ID1/ID2)

N/A 0.551 in14.00 mm

Length thru Bore

N/A 0.650 in16.50 mm

Clamp Screw Size

N/A M4

Dimension HD

N/A 1.102 in28.00 mm

Cubic inches

N/A 4.49241 in³

Performance Data

Max. Operating Temperature

N/A 300.00 ºF

Nominal Torque

N/A 35.00 in·lb

Angular Misalignment

N/A 2.00 º

Axial Misalignment

N/A ± 0.016 in

Parallel Misalignment

N/A 0.007 in

Moment of Inertia

N/A 0.0550 lb·in²

Torsional Stiffness

N/A 13275.00 in·lb/rad



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



  • 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.
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.