Serving clients in a diverse range of industries,

Circle Gear & Machine Company Co. is pleased to manufacture both internal and external splines, in involute and straight sided configurations. Our customers range from HVAC firms, to semiconductor manufacturers, to automotive companies. For internal spline products, we feature a maximum part diameter of 42", with a diametrical pitch of up to 2.5 and a module up to 10. External splines can be manufactured in diameters up to 120", with a maximum 24 module and a maximum 2.5 diametrical pitch.

Gears are formed through different types of processes: forgings and castings along with others. With a wide range of materials to choose from, including alloy steel, aluminum, and ductile iron, as well as non-metals, we are sure to be able to meet any internal or external spline need that you may have. For production orders from prototype to long run, please contact us today.