Inch & Metric Gears – One Source
SDP/SI and QTC Metric Gears provide high-quality stock gear products for fast turnaround, including spur gears, anti-backlash gears, internal gears, bevel gears, worms and worm gears, gear racks, gearheads and more.
In addition to standards, SDP/SI specializes in in-house manufacturing of precision gears, custom gearboxes, and assembly of mechanical and electromechanical subassemblies.
Our comprehensive product offering and engineering expertise ensure the precision, reliability, and flexibility required for demanding systems—all from a single trusted source.
Explore all the options today.
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