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
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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.
MD Series - Mini Disc Clamp Style Couplings - Imperial
MD Series - Mini Disc Clamp Style Couplings - Imperial-2
Unit of Measure
Items MD Series - Mini Disc Clamp Style Couplings - Imperial
68514477213
MD Series - Mini Disc Clamp Style Couplings - Inch (Imperial) Bores 		MD Series - Mini Disc Clamp Style Couplings - Imperial
68514477212
MD Series - Mini Disc Clamp Style Couplings - Inch (Imperial) Bores 		MD Series - Mini Disc Clamp Style Couplings - Imperial
68514477211
MD Series - Mini Disc Clamp Style Couplings - Inch (Imperial) Bores 		MD Series - Mini Disc Clamp Style Couplings - Imperial
68514477215
MD Series - Mini Disc Clamp Style Couplings - Inch (Imperial) Bores 		MD Series - Mini Disc Clamp Style Couplings - Imperial
68514477216
MD Series - Mini Disc Clamp Style Couplings - Inch (Imperial) Bores
Description  N/A MD19C-CP-1/4X1/4 N/A MD19C-CP-3/16X1/4 N/A MD19C-CP-3/16X3/16 N/A MD25C-CP-1/4X1/4 N/A MD25C-CP-1/4X3/8
Bore A N/A 0.250 in N/A 0.188 in N/A 0.188 in N/A 0.250 in N/A 0.250 in
Bore B N/A 0.250 in N/A 0.250 in N/A 0.188 in N/A 0.250 in N/A 0.375 in
Coupling Size N/A MD19C N/A MD19C N/A MD19C N/A MD25C N/A MD25C
Bore Type N/A Finished Bore
Type N/A Mini Disc Coupling
Overall Length N/A 1.063 in27.00 mm N/A 1.063 in27.00 mm N/A 1.063 in27.00 mm N/A 1.220 in31.00 mm N/A 1.220 in31.00 mm
Keyway Size N/A No Keyway
Outside Diameter N/A 0.748 in19.00 mm N/A 0.748 in19.00 mm N/A 0.748 in19.00 mm N/A 0.984 in25.00 mm N/A 0.984 in25.00 mm
Min. Bore (Dimensions ID1/ID2) N/A 0.157 in4.00 mm N/A 0.157 in4.00 mm N/A 0.157 in4.00 mm N/A 0.236 in6 mm N/A 0.236 in6 mm
Max. Bore (Dimensions ID1/ID2) N/A 0.315 in8.00 mm N/A 0.315 in8.00 mm N/A 0.315 in8.00 mm N/A 0.472 in12.00 mm N/A 0.472 in12.00 mm
Length thru Bore N/A 0.315 in8.00 mm N/A 0.315 in8.00 mm N/A 0.315 in8.00 mm N/A 0.394 in10.00 mm N/A 0.394 in10.00 mm
Disc Material N/A Stainless Steel
Hub Material N/A Aluminum
Style N/A Clamp Screw
Application N/A Motion Control
Clamp Screw Size N/A M2 N/A M2 N/A M2 N/A M2.5 N/A M2.5
Weight N/A 0.04 oz N/A 0.04 oz N/A 0.04 oz N/A 0.06 oz N/A 0.06 oz
Weight (Complete Coupling w/ Min. Bores) N/A 0.64 oz N/A 0.64 oz N/A 0.64 oz N/A 0.88 oz N/A 0.88 oz
Max. Operating Temperature N/A 300.00 ºF
Max. Speed N/A 10000 rpm N/A 10000 rpm N/A 10000 rpm N/A 8000 rpm N/A 8000 rpm
Nominal Torque N/A 6.00 in·lb N/A 6.00 in·lb N/A 6.00 in·lb N/A 9.00 in·lb N/A 9.00 in·lb
Angular Misalignment N/A 1.50 º
Axial Misalignment N/A ± 0.20 in
Parallel Misalignment N/A 0.005 in
Moment of Inertia N/A 0.0030 lb·in² N/A 0.0030 lb·in² N/A 0.0030 lb·in² N/A 0.0090 lb·in² N/A 0.0090 lb·in²
Torsional Stiffness N/A 1770.00 in·lb/rad N/A 1770.00 in·lb/rad N/A 1770.00 in·lb/rad N/A 3983.00 in·lb/rad N/A 3983.00 in·lb/rad
Cubic inches N/A 0.59475 in³ N/A 0.59475 in³ N/A 0.59475 in³ N/A 1.18127 in³ N/A 1.18127 in³