System of Measurement System of Measurement |
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Component Component |
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 | Gear |
Module Module |
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Tooth Direction Tooth Direction |
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Gear Type Gear Type |
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 | Helical |
Number of Teeth Number of Teeth |
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Helix Angle Helix Angle |
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Helical Gear Style Helical Gear Style |
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Pressure Angle Pressure Angle |
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OD OD | Show |
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OD OD | Hide |
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Bore Type Bore Type |
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 | Round |
Gear Pitch Diameter Gear Pitch Diameter |
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Material Material |
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Finish Finish |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Teeth Heat Treatment Teeth Heat Treatment |
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About Gears
More
High-Power Metal Gears
and Crossed Left-Hand
Gear (Sold Separately)
with Right-Hand
Teeth (Sold Separately)
The helical teeth on these gears stay in contact for longer than straight teeth, which allows them to transmit higher loads at higher speeds than spur gears.
For gears to mesh correctly, they must have the same pressure angle and pitch. All of these gears transmit motion in a straight line—make sure to get one left-hand and one right-hand gear. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To avoid wearing down gears, which happens when you use the same material, we recommend mating gears with different materials. Made from carbon steel, these gears are strong, but not as strong as alloy steel gears.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||
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| Module | Number of Teeth | Helix Angle | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Teeth Heat Treatment | Dia., mm | Wd., mm | Each | |
Left Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
| 1 | 13 | 45° | 18 | 20.38 | 10 | 20 | 6 | Not Hardened | 15 | 10 | 00000000 | 000000 |
Right Hand | ||||||||||||
Round Bore—Black-Oxide 1045 Carbon Steel | ||||||||||||
| 1 | 13 | 45° | 18 | 20.38 | 10 | 20 | 6 | Not Hardened | 15 | 10 | 00000000 | 00000 |