Stock Drive Products and Sterling Instrument manufacture long and short-run, high quality precision parts and assemblies. Mechanical components produced and distributed at SDP/SI are timing belts, pulleys, sprockets, couplings, universal joints, fasteners, gearmotors, sintered bearings, precision ball bearings, precision gears – ground spur gears, helical gears, miter gears, bevel gears, internal gears, rack and pinion and precision gearheads. For over fifty years SDP/SI has been supplying precision mechanical parts to a wide variety of aerospace, medical and commercial industries.
