Established in 1950, Stock Drive Products/ Sterling Instrument (SDP/SI) is the company engineers and OEMs depend on for high-quality components, subassemblies, and engineering expertise. As a company founded and managed by engineers we understand and respond to the developing needs of our customers better than anyone. Over 100,000 components are available off-the-shelf for fast turnaround. When a standard part won’t meet your requirements we can provide alternative solutions through custom design and manufacturing. Our engineering and manufacturing teams will partner with you throughout the entire process. By providing design, development, manufacturing, assembly, and testing in one location we can ensure the end product will meet your expectations. For prototype and small to large production runs you can rely on SDP/SI.

High Volume Precision Gear Production
Precision Gears, Custom Gearboxes, Differentials, and Planetary Gearheads

State-of-the-art gear production facility has increased capacity and offers new capabilities.
• High-precision gear production 24/7
• Faster turn around–including gear cuttingon CNC lathes for onepiece flow (depending on quality (UP TO AGMA 11) and process requirements).

Services and Products We Offer
SDP/SI designs, manufactures and produces custom and standard gears and other power transmission components. Our precision gears, gear assemblies, high-quality machined parts and molded components are used in a wide variety of product applications worldwide including aerospace, defense, military and commercial aircraft, robotics, and medical.

• Timing Belts and Pulleys
• Precision Gears
• Precision Gearboxes
• Precision Machined Components
• Molded Components
• Mechanical Assemblies
• Customized Components and Assemblies
• Contract Manufacturing

Stock Drive Products/Sterling Instrument a Designatronics company

Stock Drive Products/Sterling Instrument is an ISO 9001:2008 + AS9100C certified manufacturer of precision gears, high-quality machined parts, molded components and mechanical assemblies. We provide total motion control and power transmission solutions to a wide variety of product applications.

• Surgical Robots
• Stinger Missiles
• Gulfstream Aircraft
• Flight Instrumentation
• Pan & Tilt Camera and Lighting
• Commercial Faucets
• 3D Printers

In February, 2017 we will begin operations in a new state-of-the-art facility designed to improve lead times
and efficiency.

SDP/SI – Stock Drive Products/
Sterling Instrument
250 Duffy Avenue
Hicksville, NY 11801 USA
Tel: (516) 328-3300

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