Spur Gears and Rack Spur Gears: Steel spur gears in 20 through 2 Diametral Pitch - 14 1/2° pressure angle stocked. Other circular, metric, or D. P. sizes made-to-order in 14 1/2°, 20° or other pressure angles from steel, nylon, phenolic, bronze, cast iron or other materials up to 96" diameter. Internal gears and ground external profiles may be provided subject to equipment limitations. Gear Rack: Steel gear rack in 14 1/2° pressure angle - 20 through 3 Diametral Pitch is stocked. Racks with 20° P.A., circular, and metric pitches or special materials made-to-order. Ends can be milled to match for continuous operation if required. Change Gears: Standard steel change gears and bushings stocked in all tooth sizes for 20, 16, 12, 10, and 8 Diametral Pitch - 14 1/2° pressure angle. products/services | gear making | overview | faq | site map | contact | home