A right-hand steel worm with a black oxide finish, module 2, 31 mm pitch diameter, 12 mm face width, and a 12 mm bore with H7 tolerance. The worm has a single start thread and a lead angle of 3°42'.
A worm gear pair, or worm gear set, consists of two gears: the worm, which resembles a spiral screw, and the worm gear (aka, worm wheel).
For the pair to mesh, the worm and worm gear must have the same pressure angles, modules, and lead directions (left- or right-hand).
A worm revolves on a shaft that’s perpendicular to the worm gear and the shaft angle is typically 90°. Because the teeth gradually mesh as the worm rotates, there is low noise and low vibration.
For more about worm gear mesh geometry follow this link.
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| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | A 1C 5MYH20R |
| Product Name | 2 Mod / 1 Thread / 31mm (PD), 3.7° / Right Hand Worm |
| Gear Type | Worm; Rack |
| Direction | Right |
| Pressure Angle | 14.5° |
| Material | Steel / Commercial |
