About Gears
More
Plastic 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. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re 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.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Acetal gears are best suited for use in light duty machines or for prototyping.
For technical drawings and 3-D models, click on a part number.
Inch Gears
Round Bore
Hub | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch  | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Fabrication | Color | Dia. | Wd. | Each | |
Round Bore | |||||||||||||
| 20 | 20 | 1" | 1.1" | 3/8" | 0.75" | 3/8" | Acetal Plastic | Molded | White | 0.734" | 0.375" | 000000 | 00000 |
| 20 | 24 | 1.2" | 1.3" | 3/8" | 0.75" | 3/8" | Acetal Plastic | Molded | White | 0.734" | 0.375" | 000000 | 0000 |
| 20 | 36 | 1.8" | 1.9" | 3/8" | 0.75" | 3/8" | Acetal Plastic | Molded | White | 0.734" | 0.375" | 000000 | 00000 |
| 20 | 40 | 2" | 2.1" | 3/8" | 0.75" | 3/8" | Acetal Plastic | Molded | White | 0.734" | 0.375" | 000000 | 00000 |
| 20 | 48 | 2.4" | 2.5" | 3/8" | 0.75" | 3/8" | Acetal Plastic | Molded | White | 0.734" | 0.375" | 000000 | 00000 |