Steel spur gears in 20 to 2 Diametral Pitch - 14.5 deg pressure angle stocked. Other circular, metric or D. P. sizes made-to-order in 14.5 deg, 20 deg or other pressure angles from steel, nylon, phenolic, bronze, cast iron or other materials up to 96 in Dia Internal gears and ground external profiles may be provided subject to equipment limitations.