SDP/SI
Manufacturer of precision gears, gear assemblies, timing belts, and small mechanical components.
Specifications & options
Product families
Gear materials
Quality standards
AGMA and ISO precision and commercial grades
Why choose SDP/SI?
Precision tolerances
Components are manufactured to AGMA and ISO precision standards for tight-tolerance applications.
Certified quality
Production is backed by AS9100, ITAR, and NADCAP certifications for aerospace and demanding industries.
Broad material range
Parts are offered in stainless steel, aluminum, brass, and acetal to suit different loads and environments.
Inch and metric
Stock components are available in both inch (diametral pitch) and metric (module) sizing systems.
Product series
Understand each series to find the right fit for your application.
Precision Gears
Spur, bevel, miter, helical, and worm gears available in precision and commercial grades with various hub and bore options.
Timing Belts & Pulleys
Synchronous timing belts, pulleys, and sprockets for accurate, slip-free motion transmission in various tooth profiles.
Couplings & Universal Joints
Flexible and rigid couplings plus universal joints that connect shafts and accommodate misalignment.
Shafts & Bearings
Precision shafts, shaft accessories, bearings, and bearing blocks that support and locate rotating assemblies.
Gear Assemblies & Drives
Pre-engineered gear assemblies, speed reducers, and right-angle drives for ready-to-install motion solutions.
Need a specific model or spare part?
Chat with our team on LINE and we’ll help you find the right one.