Mechanical-drive components

Stock Drive Products and Sterling Instrument, New Hyde Park, N.Y., feature more than 48,000 off-the-shelf commercial and precision-quality inch-size mechanical-drive components in a 1,186-page catalog. Major product groups include gears, belts and drives, shafts, shaft accessories, bearings, couplings, universal joints, vibration mounts, miscellaneous components, hardware, gearheads and speed reducers, right-angle drives, brakes and clutches, and motors and gearmotors. All components follow these parameters: 120 to 16 pitch gears, shafts from 0.0311 to 1.249 in. diameter, and 15 W or less devices.