Profile: Sewall Gear Mfg. Co. is a manufacturer of industrial gears. We offer complete gear manufacturing capabilities from 1 to 48 D.P. and up to 115 inch pitch diameter. We also offer assistance in design and development of gears and gear drives for industrial applications. We produce a broad range of gears. We provide heat treat in-house, check and recheck quality. We provide crown hobbing, crown shaving, straight shaving, internal gears, cluster gears and splines. Our product line includes spur and helical gears, bevel gears, worm gearing, gear rack, custom drives and broaching.