Speed Ratio Speed Ratio |
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System of Measurement System of Measurement |
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Module Module |
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Component Component |
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![]() | Gear |
Gear Type Gear Type |
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Bore Type Bore Type |
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![]() | ![]() |
Machinable | Round |
Number of Teeth Number of Teeth |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Teeth Heat Treatment Teeth Heat Treatment |
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For Maximum Shaft Diameter For Maximum Shaft Diameter |
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Material Material |
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Finish Finish |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Teeth Fabrication Teeth Fabrication |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Pressure Angle Pressure Angle |
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Overall Width Overall Width | Show |
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Overall Width Overall Width | Hide |
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About Gears
More
High-Power Metal Bevel Gears

Made from carbon steel with spiral teeth, these gears handle heavier loads at higher speeds than bevel gears with straight teeth because their teeth stay in contact longer. Their teeth engage gradually, which reduces vibration and noise, and they’re hardened for extra wear resistance. Use these gears to transmit motion at a right angle while changing shaft speed and torque. They reduce speeds at ratios of 2:1, 3:1, or 4:1. Customize their machinable bore to fit them on a variety of shafts. They’re also known as spiral bevel gears.
A complete set consists of a gear and pinion (sold separately). The gear is larger than the pinion, but for them to mesh correctly, they must have the same pressure angle, module, and face width.
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 | |||||||||||||
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Face Width, mm | 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 | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
15 | 20° | 3:1 | 45 | 90 | 90.67 | 30.3 | 12-30 | 40 | Black-Oxide 1045 Carbon Steel | 40 | 17 | 0000000 | 0000000 |



Hub | |||||||||||||
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Face Width, mm | 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 | Diameter, mm | Width, mm | Each | |
Machinable Round Bore | |||||||||||||
15 | 20° | 3:1 | 15 | 30 | 34.78 | 29.7 | 10-14 | 60 | Black-Oxide 1045 Carbon Steel | 24 | 14 | 0000000 | 000000 |