Stock Drive Products/Sterling Instrument a Designatronics company 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 ex...
Stock Drive Products/Sterling Instrument a Designatronics company
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 87,000 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. Located in New York, SDP/SI recently moved into a brand new 86,000 sq. ft. state-of-the-art manufacturing facility. 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
We manufacture 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 turnaround – including gear cutting on CNC lathes for one piece flow (depending on quality (UP TO AGMA 11) and process requirements).
Stock Drive Products/Sterling Instrument, ISO 9001 + AS9100 Certified
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 Machined Components
Customized Components and Assemblies
For a design consultation or technical assistance call our engineering department: (516) 328-3300.
Request a Free Inch and Metric Catalog Set, more than 2,784 pages of parts, specifications and technical information.
For more information contact SDP/SI Stock Drive Products/Sterling Instrument
How to Achieve Optimum Performance in a Miniature Gear Train
Smooth, accurate gears and optimum performance is the goal of any new design. Achieving those goals in the early design stage not only meets performance requirements but makes your design cost-efficient. A key component of this is being able to accurately predict dimensional changes due to any type of surface finishing. Other benefits include lower manufacturing costs and no time lost due to a design error. In a gear mechanism, the center distance between shafts and the tooth thickness of the gear define the correct mesh and reliable performance of a gear train. To achieve an accurate gear mesh in a mechanism, it is necessary to account for any dimensional changes that may occur after surface finishing, case hardening or heat treatment.
Steps to Designing a Miniature Belt and Pulley Drive System
Belt drives are particularly useful in applications where layout flexibility is important. They enable the designer to place components in more advantageous locations at larger distances without paying a price penalty. Timing belts are one of the most commonly used motion transmitting elements in design applications, such as robotics, aerospace, medical, military, and commercial design. There are many different types of timing belt available, with several options for tooth profile, material, color, and reinforced cord. The key to an efficient drive system is choosing the most appropriate belt - learn how here.
SDP/SI Acquires a ProJet 3D Printer
Stock Drive Products/Sterling Instrument (SDP/SI), a leader in providing mechanical based design, engineering, and manufacturing services for critical motion control and small power transmission applications, recently acquired the 3D Systems ProJet MJP...Sep 27, 2018
SDP/SI Provides Precision Machining for Aerospace and Defense
Stock Drive Products/Sterling Instrument (SDP/SI) meets all certification requirements of the new ISO 9001:2015 + AS9100D standard, maintaining processes that provide superior components and assemblies with detailed quality reporting. SDP/SI is a leade...Mar 06, 2018
SDP/SI Moves to Brand New World-Class Engineering and Manufacturing Facility
Stock Drive Products/Sterling Instrument, a manufacturer of precision mechanical components established in 1950, has begun operations in a brand new world-class facility designed to greatly improve efficiencies and lead times. The new facility will eas...Feb 08, 2017
Miniature Fairloc Bellows Couplings
SDP/SI, a leader in comprehensive mechanical solutions for critical motion control applications is pleased to introduce a new line of couplings. SDP/SI's Miniature Fairloc Bellows Couplings are zero backlash, easy to install and corrects for angular an...Nov 14, 2016
SDP/SI Adds Plastic Cam Followers to Their Vast Product Offering
Plastic Cam Followers Replace Costly Metal Cam Followers in Many Applications Cam Followers are designed to transmit motion in today's high-speed and light-duty machines in medical, packaging, and semi-conductor equipment. The plastic roller makes...Nov 14, 2016
SDP/SI Stock Drive Products/Sterling Instrument
250 Duffy Avenue