Tracey Gear & Precision Shaft manufactures custom gears, splines, and precision shafts to customer engineering drawings. We are a family-owned, ISO 9001:2015 certified job shop in Pawtucket, Rhode Island, producing parts in small to medium production runs, 100% in the USA, since 1945.
We are a build-to-print manufacturer. To quote your part, we need a complete engineering drawing that includes:
What we do not do:
For Union Gear & Sprocket and equivalent catalog parts, a catalog part number plus your written modifications is all we need to quote.
Learn more about our process.
We hob and shape spur gears, helical gears, splines, sprockets, and timing belt pulleys from 3 to 48 DP and 0.5 to 8 module, up to AGMA Q11. We generate straight and angular bevel gears up to 14″ in diameter on Gleason straight bevel generators.
We grind worms, worm shafts, ACME threads including multiple-start threads, and precision threaded shafts in hardened and unhardened steels.
We perform surface, OD (cylindrical), and ID grinding and honing, holding ground diameters to 0.0003″ total tolerance with finishes down to 8 µin Ra.
We produce gear blanks, shafts, hubs, and bores on CNC lathes and vertical machining centers, completing multiple operations in one setup where possible.
We broach keyways from 3/16″ to 1-3/4″, involute and straight-sided internal splines, squares, and hexes. When broaching is not practical, we produce internal features by shaping or EDM.
We manufacture gears, splines, and shafts to engineering drawings for:
Every part we make is built to your engineering drawing. If your industry isn’t listed, we would still like to quote your part.
Send Us Your Print for a QuoteLeo F. Tracey started Tracey Gear in a one-car garage in 1945. In 1973 his sons Stephen, Richard, and Kevin took over the business and grew it into the shop it is today. In 2023, Doug Tracey became owner, bringing the company into its third generation of family ownership. More than 80 years later, Tracey Gear & Precision Shaft is still family-owned and still focused on one thing: manufacturing precision gears and shafts exactly to our customers’ prints.
No. We do not reverse engineer parts or work from samples. We require a complete engineering drawing.
No. We are a build-to-print manufacturer. Design and material selection must come from your engineering team and be shown on the drawing.
We specialize in small to medium production runs.
No. We supply military and defense contractors, not government agencies directly.
