Number of Teeth Number of Teeth |
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System of Measurement System of Measurement |
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Material Material |
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Bore Type Bore Type |
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 | Round |
OD OD | Show |
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OD OD | Hide |
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Component Component |
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 | Gear |
Module Module |
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Gear Type Gear Type |
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 | Worm |
Speed Ratio Speed Ratio |
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Pressure Angle Pressure Angle |
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For Number of Thread Starts For Number of Thread Starts |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Thread Direction For Thread Direction |
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Fabrication Fabrication |
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Color Color |
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 | Blue |
Hub Material Hub Material |
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Teeth Fabrication Teeth Fabrication |
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About Gears
More
Metal Worms and Worm Gears
Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and pitch/module. These worms are compatible with plastic worm gears.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Bronze gears have low friction and dissipate heat better than cast iron gears to provide a long service life for both the gear and the worm. They’re also more corrosion resistant than cast iron gears.
Aluminum-bronze gears have excellent wear resistance.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Dia., mm | Wd., mm | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Bronze | |||||||||||||||||
| 1 | 50:1 | 50 | 20° | 50 | 1 | 53 | 10 | 20 | 8 | 30 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
Round Bore—Aluminum-Bronze | |||||||||||||||||
| 1 | 50:1 | 50 | 20° | 50 | 1 | 53 | 10 | 20 | 8 | 30 | 10 | Aluminum-Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
Plastic Worm Gears
These plastic gears are lighter and quieter than metal gears—pair them with metal worms for lubrication-free operation. Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and module.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Nylon gears are lightweight and stronger than acetal gears.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Width, mm | Overall Width, mm | For Shaft Diameter, mm | Material | Fabrication | Color | Diameter, mm | Width, mm | For Thread Direction | Each | |
Round Bore | |||||||||||||||||
| 1 | 50:1 | 50 | 20° | 50 | 1 | 53 | 10 | 20 | 8 | Nylon Plastic | Molded | Blue | 30 | 10 | Right Hand | 00000000 | 000000 |