Stock Spur Gear, External Tooth Reborable, 1/2 Inch Bore Diameter, 1.1 Inch Outside Diameter, 20 Teeth, 20 Diametral Pitch, 1 Inch, 1/2 Inch Face Width, Type B, 0.859 Inch Hub Diameter, 0.438 Inch Hub Projection, 0.938 Inch Overall Length, 20° Pressure Angle, Steel

Martin stock spur gears are available in five different styles. Steel gears are furnished in plain style and plain style with hub. Cast gears are furnished, plain with hub, web with lightening holes, and spoke. Cast gears are machined on all operating surfaces. Martin cast gears are cast with a larger hub to provide extra strength and to allow for larger bores. Spur gears are stocked in both 14-1/2 and 20 deg pressure angles. Martin Stock Spur Gear, External Tooth Reborable, 1/2 in Bore Dia, 1.1 in Outside Dia, 20 Teeth, 20 Diametral Pitch, 1 in, 1/2 in Face Width, Type B, 0.859 in Hub Dia, 0.438 in Hub Projection, 0.938 in Overall Length, 20 deg Pressure Angle, Steel