Designatronics/Stock Drive Products Couplings

Designatronics/Stock Drive Products provides a wide variety of shaft couplers for flexible or rigid applications. They use a variety of materials and designs to meet the specific torque, speed, angle and other requirements of your system. FairLoc hubs are available to make them easy to use as well.

Standard shaft sizes from .0625” to .625”

Types of Couplings
Bellows Gear Grip Flexible Spring
Flexible Slit type Spider Type Neo-Flex
Helical Flexible Spline Disc Type
Sleeve Type Miniature Ball High Speed Rigid
Flexible Jaw Type Oldham Couplings Spring Wrapped
K Type Torque Tube Rigid FairLoc
Silicone Insert Anti Vibration Flexible Coupling Shaft

Every application with shafts requires careful consideration of the system requirements to achieve optimum performance.  Application information is readily available on the website.

Additional assistance is available from one of the Stock Drive Products engineers.

We are happy to provide help with your application as well.  Please let us know how we can be of service. 1-800-980-8812

Designatronics/SDP/SI is a leading manufacturer of small mechanical components, servicing a wide variety of aerospace, medical and commercial industries for over 50 years. Quotes, online orders, and 3D CAD Models are available on their updated e-store at SDP/SI offers over 130,000 small mechanical components, including gears, belt and chain drives, shafts, shaft accessories, bearings, couplings, universal joints, vibration mounts, miscellaneous components, hardware, gearheads and speed reducers, right angle drives, brakes and clutches, motors and gearmotors. For additional information about SDP/SI please visit or
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