Worm Gears
Available201 products
Worm gears transfer rotary motion and power between non-parallel or non-intersecting shafts. They're used to reduce speeds or increase torque in mechanical applications that operate in confined spaces, such as power steering, machine tools, elevators, and chain blocks. Worm gears are a two-part mechanism that consists of a rod-shaped gear with spiral threading called a worm and a disc-shaped gear with projecting teeth named a wheel. The worm drives the wheel with a rolling and sliding action that creates minimal vibration and low noise output. However, their meshing motion creates friction, so they're typically paired in different materials to minimize heat and wear.
Metric Worm Wheels
These wheels have a metric pitch and are used with worms or worm shafts to transfer rotary motion. Worm wheels are disc-shaped gears with teeth that project from their radius.
Pressure Angle: 14.5 °
Cast Iron
Metric Module Pitch: 2
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Bronze
Metric Module Pitch: 2
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Nylon
Metric Module Pitch: 2
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Metric Module Pitch: 2.5
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Metric Module Pitch: 3
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Pressure Angle: 20 °
Cast Iron
Metric Module Pitch: 1
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Metric Module Pitch: 1.5
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Metric Module Pitch: 2.5
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Bronze
Metric Module Pitch: 0.5
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Metric Module Pitch: 0.8
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Metric Module Pitch: 1
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Metric Module Pitch: 1.25
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Metric Module Pitch: 1.5
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Metric Module Pitch: 2.5
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Aluminum Bronze
Metric Module Pitch: 0.5
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Metric Module Pitch: 0.8
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Metric Module Pitch: 1
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Metric Module Pitch: 1.5
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Metric Module Pitch: 2
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Metric Module Pitch: 2.5
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Nylon
Metric Module Pitch: 1
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Metric Module Pitch: 1.5
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Acetal
Metric Module Pitch: 0.5
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Metric Module Pitch: 0.8
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Metric Worms
These worms have a metric pitch and are used with worm wheels to transfer rotary motion. Worms are rod-shaped gears with spiral threading and bores on their ends to mount on shafts.
Pressure Angle: 14.5 °
Black Oxide Coated Carbon Steel
Number of Starts: 1 | Number of Starts: 2 | |||||||||||||
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Stainless Steel
Number of Starts: 1 | Number of Starts: 2 | |||||||||||||
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Pressure Angle: 20 °
Black Oxide Coated Carbon Steel
Number of Starts: 1 | Number of Starts: 2 | |||||||||||||
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Stainless Steel
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Metric Worm Shafts
These worm shafts have a metric pitch and are used with worm wheels to transfer rotary motion. Worm shafts have spiral threading along their body and bores on their ends that, when mounted, increase strength, improve accuracy, and help resist abrasion.
Pressure Angle: 20 °
Alloy Steel
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Black Oxide Coated Alloy Steel
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