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Setting Ideas into Motion
SDP/SI - Stock Drive Products/Sterling Instrument provides small mechanical components, engineering and manufacturing services for industrial and commercial applications.
All CAD models are available on the "Product Detail" page of our components.
Our Products:
Gears, Differentials, Ratchets and Pawls
Belt & Chain Drive Components
Shafts and Shaft Accessories
Bearings and Bearing Blocks
Couplings & Universal Joints
Vibration and Shock Mounts
Linear Motion Products
Hardware and Misc. Components
Gearheads and Speed Reducers
Right Angle Gear Drives
Clutches and Brakes
Motors and Gearmotors
Providing Product Solutions Since 1950
Since 1950, design engineers have depended on SDP/SI 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 inch and metric dimensioned components are available for fast turnaround. When a standard product 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.
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Design Tools
Center Distance Designer
Find the correct center distance for your belt and pulley application
Coupling Selector
Find the perfect coupling easily
Latest News
SDP/SI
SDP/SI to Exhibit Precision Mechanical Components and Customized Subassemblies at MD&M WEST 2019
Medical Device Manufacturers Make SDP/SI an Engineering and Manufacturing Partner
SDP/SI
Newsday Names Designatronics, Inc. A Winner of the Long Island 2018 Top Workplaces Award
The anonymous survey measures several aspects of workplace culture, including alignment, execution, and connection, just to name a few.
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Engineered Solutions for a World in Motion
(800) 819-8900
(800) 819-8900