The SDP/SI Fairloc Hub Design – Make a Great Device Better

Set screws are one of the oldest and most common methods to lock a component to a shaft, either on the shaft radius or on milled flat. By replacing gears that relied on this fastening method with SDP/SI gears featuring the Fairloc® hub design, a medical device manufacturer gained a more robust, easier-to-assemble, and highly precise system. SDP/SI’s engineering support and innovative hub technology converted a chronic production issue into a long-term competitive advantage.

SDP/SI designs and manufactures high-precision gears and gear assemblies, many featuring the proprietary Fairloc® Hub design, a proven solution for accurate, repeatable torque transmission. Our comprehensive product offering serves demanding applications across medical, aerospace and defense, and automation industries.

SDP/SI offers an extensive range of stock inch and metric gears for rapid delivery, covering a wide selection of gear types, pitches, modules, materials, and tooth counts. Gears incorporating the Fairloc Hub are available in 96 to 24 Diametral Pitch and Modules 0.5 to 2, including:

• Nonmetallic and metallic spur gears
• Antivibration gears
• Anti-backlash and mini-lash gears
• Miter and bevel gears

SDP/SI is ISO 9001 and AS9100 registered and an active AGMA member.

Partner with SDP/SI – U.S. Manufacturer of Power Transmission and Motion Control Products Since 1950

SDP/SI provides engineered mechanical solutions for aerospace, medical, robotics, and other high-performance industries. Beyond standard components, SDP/SI provides engineering expertise, manufacturing, and full mechanical and electromechanical subassembly services, delivering world-class quality and reliability.

As a precision gear and small mechanical component manufacturer, SDP/SI excels across all major processes, including Swiss turning, milling, turning, grinding, drilling, gear cutting, bevel gear cutting, and assembly. Components are produced in a wide range of materials, with finishing and surface treatments performed in NADCAP-certified and customer-approved facilities.

Whether you need a standard gear drive solution or a fully customized mechanical or electromechanical assembly, SDP/SI’s engineering team is ready to help. Requests for quote are accepted from drawings or 3D CAD models.

SDP/SI - Stock Drive Products/Sterling Instrument, a Designatronics company
250 Duffy Avenue, Hicksville, NY 11801
Phone: (516) 328-3300; (800) 819-8900
https://shop.sdp-si.com