Spur Gear Drives | McMaster-Carr

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About Gears

Metal Gears and Gear Racks—20° Pressure Angle

The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. They're also known as spur gears.

Metal Gears and Gear Racks—14 1/2° Pressure Angle

A former industry standard, 14½° pressure angle gears are often found on older machinery.

Plastic Gears and Gear Racks—14 1/2° Pressure Angle

A former industry standard, 14½° pressure angle gears are often found on older machinery.

Plastic Gears and Gear Racks—20° Pressure Angle

The current industry standard, gears with a 20° pressure angle have thicker, stronger teeth than gears with a 14½° pressure angle.

Gear Rod Stock

Machine your own gears to fit the exact face width and shaft diameter required.

Speed Reducers for Face-Mount AC Motors

Mount these gears to a NEMA motor. Spur gears minimize torque loss between your motor and drive shaft, making these speed reducers more efficient than our other speed reducers.

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