Material Material | Show |
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Component Component |
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| Gear | Gear Rack |
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| Internal Gear |
System of Measurement System of Measurement |
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Bore Type Bore Type |
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 | Round |
Pressure Angle Pressure Angle |
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Gear Type Gear Type |
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| Spur |
OD OD |
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Hub Diameter Hub Diameter |
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Gear Rack Shape Gear Rack Shape |
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 | Rectangular |
Length Length |
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About Gears
More
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. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Brass gears and racks are easy to machine, so you can add your own mounting holes and make other alterations. They won't rust when exposed to water.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||
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| Pitch | Number of Teeth | Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Dia. | Wd. | Each | |
Round Bore | |||||||||||
| 64 | 16 | 0.25" | 0.28" | 1/8" | 0.315" | 1/8" | Brass | 0.19" | 0.19" | 0000000 | 000000 |
| 64 | 24 | 0.375" | 0.41" | 1/8" | 0.315" | 1/8" | Brass | 0.28" | 0.19" | 0000000 | 00000 |
| 64 | 28 | 0.438" | 0.47" | 1/8" | 0.315" | 1/8" | Brass | 0.34" | 0.19" | 0000000 | 00000 |
| 48 | 12 | 0.25" | 0.29" | 1/8" | 0.315" | 1/8" | Brass | 0.18" | 0.19" | 0000000 | 00000 |
| 48 | 15 | 0.312" | 0.35" | 1/8" | 0.315" | 1/8" | Brass | 0.22" | 0.19" | 0000000 | 00000 |
| 48 | 18 | 0.375" | 0.42" | 1/8" | 0.315" | 1/8" | Brass | 0.28" | 0.19" | 0000000 | 00000 |
| 48 | 24 | 0.5" | 0.54" | 1/8" | 0.375" | 3/16" | Brass | 0.38" | 0.25" | 0000000 | 00000 |
| 48 | 36 | 0.75" | 0.79" | 1/8" | 0.375" | 3/16" | Brass | 0.5" | 0.25" | 0000000 | 00000 |
| 48 | 48 | 1" | 1.04" | 1/8" | 0.375" | 1/4" | Brass | 0.63" | 0.25" | 0000000 | 00000 |
| 32 | 12 | 0.375" | 0.44" | 3/16" | 0.438" | 1/8" | Brass | 0.28" | 0.25" | 0000000 | 00000 |
| 32 | 14 | 0.438" | 0.5" | 3/16" | 0.438" | 1/8" | Brass | 0.34" | 0.25" | 0000000 | 00000 |
| 32 | 16 | 0.5" | 0.56" | 3/16" | 0.438" | 3/16" | Brass | 0.4" | 0.25" | 0000000 | 00000 |
| 32 | 20 | 0.625" | 0.69" | 3/16" | 0.438" | 3/16" | Brass | 0.47" | 0.25" | 0000000 | 00000 |
| 32 | 24 | 0.75" | 0.81" | 3/16" | 0.438" | 3/16" | Brass | 0.53" | 0.25" | 0000000 | 00000 |
| 32 | 28 | 0.875" | 0.94" | 3/16" | 0.438" | 3/16" | Brass | 0.59" | 0.25" | 0000000 | 00000 |
| 32 | 36 | 1.125" | 1.19" | 3/16" | 0.438" | 1/4" | Brass | 0.72" | 0.25" | 0000000 | 00000 |
| 32 | 40 | 1.25" | 1.31" | 3/16" | 0.438" | 1/4" | Brass | 0.72" | 0.25" | 0000000 | 00000 |
| 32 | 48 | 1.5" | 1.56" | 3/16" | 0.438" | 1/4" | Brass | 0.78" | 0.25" | 0000000 | 00000 |
| 24 | 12 | 0.5" | 0.58" | 1/4" | 0.5" | 3/16" | Brass | 0.38" | 0.25" | 0000000 | 00000 |
| 24 | 15 | 0.625" | 0.71" | 1/4" | 0.5" | 3/16" | Brass | 0.5" | 0.25" | 0000000 | 00000 |
| 24 | 18 | 0.75" | 0.83" | 1/4" | 0.5" | 3/16" | Brass | 0.54" | 0.25" | 0000000 | 00000 |
| 24 | 21 | 0.875" | 0.96" | 1/4" | 0.5" | 3/16" | Brass | 0.6" | 0.25" | 0000000 | 00000 |
| 24 | 36 | 1.5" | 1.58" | 1/4" | 0.5" | 1/4" | Brass | 0.79" | 0.25" | 0000000 | 00000 |
| 24 | 48 | 2" | 2.08" | 1/4" | 0.56" | 5/16" | Brass | 0.92" | 0.31" | 0000000 | 00000 |
| Pitch | Number of Teeth | Pitch Dia. | OD | ID | Face Wd. | Material | Each | |
| 32 | 48 | 1.5" | 2" | 1.461" | 3/16" | Brass | 000000 | 0000000 |
| 32 | 64 | 2" | 2.75" | 1.961" | 3/16" | Brass | 000000 | 000000 |
| 32 | 96 | 3" | 3.75" | 2.961" | 3/16" | Brass | 000000 | 000000 |
| 32 | 128 | 4" | 4.75" | 3.961" | 3/16" | Brass | 000000 | 000000 |
| 24 | 36 | 1.5" | 2.25" | 1.45" | 1/4" | Brass | 000000 | 000000 |
| 24 | 48 | 2" | 2.75" | 1.95" | 1/4" | Brass | 000000 | 000000 |
| 24 | 72 | 3" | 3.75" | 2.95" | 1/4" | Brass | 000000 | 000000 |
