About Gears
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Plastic Miter Gears
Connect two shafts at a right angle without changing shaft speed or torque. Made of plastic, these gears run quieter than metal gears and have good corrosion and chemical resistance.
For two gears to mesh correctly, they must have the same pressure angle, pitch/module, and number of teeth.
Nylon gears are self-lubricating, so they’re often used in food machinery. However, they’re not approved for direct contact with food or chemicals that will come into contact with food.
Acetal gears absorb less moisture than nylon gears and are less prone to dimensional change. They’re best suited for use in light duty applications such as prototyping.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gear Pitch  | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Mounting Distance | Material | Fabrication | Color | Dia. | Wd. | Each | |
Round Bore | |||||||||||||||
| 48 | 18 | 20° | 3/8" | 0.4" | 0.05" | 0.264" | 1/8" | 0.406" | Nylon Plastic | Molded | White | 0.328" | 0.188" | 0000000 | 000000 |
| 48 | 24 | 20° | 1/2" | 0.53" | 0.09" | 0.375" | 3/16" | 0.531" | Nylon Plastic | Molded | White | 0.375" | 0.25" | 0000000 | 00000 |
| 32 | 16 | 20° | 1/2" | 0.55" | 0.11" | 0.344" | 3/16" | 0.5" | Nylon Plastic | Molded | White | 0.406" | 0.188" | 0000000 | 00000 |
| 32 | 24 | 20° | 3/4" | 0.8" | 0.16" | 0.406" | 3/16" | 0.688" | Nylon Plastic | Molded | White | 0.5" | 0.188" | 0000000 | 00000 |
| 24 | 24 | 20° | 1" | 1.05" | 0.26" | 0.563" | 1/4" | 0.875" | Nylon Plastic | Molded | White | 0.625" | 0.188" | 0000000 | 00000 |
| 24 | 30 | 20° | 1 1/4" | 1.31" | 0.19" | 0.578" | 1/4" | 1.031" | Nylon Plastic | Molded | White | 0.625" | 0.313" | 0000000 | 00000 |
| 24 | 36 | 20° | 1 1/2" | 1.56" | 0.21" | 0.609" | 5/16" | 1.188" | Nylon Plastic | Molded | White | 0.688" | 0.313" | 0000000 | 00000 |
| 16 | 16 | 20° | 1" | 1.09" | 0.22" | 0.75" | 3/8" | 1.063" | Nylon Plastic | Molded | White | 0.75" | 0.438" | 0000000 | 00000 |
Hub | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance, mm | Material | Fabrication | Color | Dia., mm | Wd., mm | Each | |
Round Bore | |||||||||||||||
| 0.5 | 20 | 20° | 10mm | 10.7 | 2.5 | 8 | 3 | 11 | Acetal Plastic | Molded | White | 8 | 4 | 000000 | 00000 |
| 0.8 | 20 | 20° | 16mm | 17.1 | 3.5 | 10.8 | 5 | 16 | Acetal Plastic | Molded | White | 12 | 5 | 000000 | 0000 |
| 1 | 20 | 20° | 20mm | 21.4 | 4.5 | 14.6 | 6 | 21 | Acetal Plastic | Molded | White | 16 | 7 | 000000 | 0000 |
| 1 | 20 | 20° | 20mm | 21.4 | 5 | 14 | 6 | 20 | Nylon Plastic | Molded | Blue | 16 | 8 | 00000000 | 00000 |
| 1 | 25 | 20° | 25mm | 26.4 | 6 | 15 | 6 | 23 | Nylon Plastic | Molded | Blue | 20 | 8 | 00000000 | 00000 |
| 1.5 | 20 | 20° | 30mm | 32.1 | 7 | 20.6 | 8 | 30 | Acetal Plastic | Molded | White | 20 | 10 | 000000 | 0000 |
| 2 | 20 | 20° | 40mm | 42.8 | 10 | 25 | 10 | 37 | Nylon Plastic | Molded | Blue | 34 | 14 | 00000000 | 00000 |
Plastic Bevel Gears
Reduce speeds where noise, corrosion, and frequent lubrication are a concern. Compared to metal gears, these nylon gears run more quietly, won't rust, and don't need to be lubricated. Because they’re self-lubricating, these bevel gears are commonly used in food machinery. They should not, however, come in direct contact with food or chemicals that will come in contact with food.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, module, and face width. Plastic pinions can also be mated with metal gears, and plastic gears with metal pinions.
Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (A), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
| 6 | 1 | 20° | 2:1 | 40 | 40 | 40.6 | 15 | 8 | 22 | Nylon Plastic | Molded | Blue | 25 | 8 | 00000000 | 000000 |
| 8 | 1.25 | 20° | 2:1 | 40 | 50 | 50.7 | 19 | 10 | 27 | Nylon Plastic | Molded | Blue | 32 | 10 | 00000000 | 00000 |
Hub | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Face Width, mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Width, mm | For Shaft Diameter, mm | Mounting Distance (B), mm | Material | Fabrication | Color | Diameter, mm | Width, mm | Each | |
Round Bore | ||||||||||||||||
| 6 | 1 | 20° | 2:1 | 20 | 20 | 22.4 | 14 | 6 | 28 | Nylon Plastic | Molded | Blue | 16 | 7 | 00000000 | 000000 |
| 8 | 1.25 | 20° | 2:1 | 20 | 25 | 28 | 19 | 8 | 36 | Nylon Plastic | Molded | Blue | 22 | 10 | 00000000 | 00000 |