Mechanical Components

Precision gears, gear assemblies, timing belts,

timing belt pulleys & Couplings


Territory Represented: Arizona, New Mexico, Southern Nevada


At SDP/SI, 50 years of design and manufacturing experience, coupled with the very latest technology, go into every component produced. Whether it’s developing a complete design or choosing the right standard or custom part for the job, our engineers will help you meet your goal. Out on the shop floor, our skilled manufacturing team utilizes state-of-the-art CNC machinery paired with precise testing and inspection methods to ensure that the gear, pulley or custom component you receive meets all your requirements. Expert handling, packaging and shipping methods guarantee your components arrive as expected.

        Services provided:

Machining Capabilities:
Deburring Department
Drilling Equipment
Gear Cutting Equipment
Grinding Equipment
Honing Machines
Lathes, CNC and Non-CNC
Milling Machines &
Machining Centers, CNC
Plastic Injection Molds
Plastic Injection Machines
Timing Belt Slicing Machines
Timing Belt Ink Jet Printers
Ultrasonic Welders
Miscellaneous Equipment
Certified Inspection & Test Equipment
SPC Equipment

Tolerancing to 0.0001”
Turning to 16” diameter
Gears and Racks from 8DP to 200DP
Worms & Worm Wheels 16DP to 72DP
AGMA tolerancing to Q14

Prototype to Large Production Quantities:
Some available to ship in 24 hours.

Material Options:
Stainless Steel, Steel, Aluminum, Brass, Plastic and other materials.

Plating Options:
Zinc, Chrome and Nickel Plating; Anodizing and Black Oxide finishes also available.

Special Handling:
J.I.T. (Just-In-Time) Delivery

Barcoding, U.P.C. Coding, customer part number and
special packaging available.


SDP/SI – Stock Drive Products / Sterling Instrument
250 Duffy Avenue, Hicksville, NY 11801

Phone: (800) 819-8900 or (516) 328-3300