SDP/SI is a well-known manufacturer of high precision custom gears for a wide range of applications, including but not limited to the aerospace, defense and medical industries. In addition to our custom capabilities, we offer hundreds of cost effective, off-the-shelf standard gears which are available in metal and plastic materials. Many of our stock gears are available or can be made with the superior Fairloc® hub design.
Inch & Metric Gears Available Off-the-Shelf
Gear Types: Anti-backlash Gears, Bevel Gears, Cluster Gears, Differential End Gears, Gear Blanks, Helical Gears, Internal Gears, Miter Gears, Gear Racks, Spur Gears, Screw Gears, Worm Gears and Worms
Pitch: 120 – 16
Module: 0.2 – 10
Materials: Stainless Steel, Steel, Brass, Aluminum, Nylon, Acetal
Available Modifications: Bore Sizes, Keyways and Hub Lengths. These modifications can be made at prices considerably lower when compared to the cost of custom made gears.
Gear Manufacturing Capabilities
Turning: Standard: 1/4″ to 6” OD • Custom: to 8″ OD
Milling: Standard: 8″ x 12″ • Custom: 12″ x 20″
Gear Cutting: Gears and Racks: Standard – 16 DP to 120 DP • Custom – to 200 DP
Worms and Worm Wheels: Standard – 16 DP to 72 DP
Machining Tolerances: ± 0.0001″
Gear Cutting Tolerances: Molded Gears: up to AGMA 8 • Ground Gears: up to AGMA 14
Available Materials: Acetal, Aluminum, Brass, Bronze, Cast Iron, Greek Ascoloy, Iconel, Nylon, Steel Alloys, Stainless Steel, Titanium
As an AS9100 registered company, we provide gearboxes, planetary gearheads and differentials for aerospace and commercial applications. ISO 7 / 10000 Class Clean Room