Spur Gear Drives | McMaster-Carr

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Power Transmission

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—20° Pressure Angle

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

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

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

Gear Rod Stock

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

Gear Tooth Pitch Identifiers

Gear Tooth Pitch Identifiers

When replacing a gear, use these gauges to identify pressure angle, pitch, and module.

Rotary Speed Limiters

Install these rotary speed limiters at the hinges of small lids, doors, and access panels for smooth, quiet motion.

Speed Reducers for Face-Mount AC Motors

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.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)