A bronze worm gear with 40 teeth, a pitch diameter of 1.667 inches, a 1/2 inch bore, a 9/16 inch hub length, and a 5/16 inch hub face width, designed to mesh with a 24-pitch, right-hand steel worm with a 14-1/2° pressure angle and a lead of 0.1309 inch.
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 1B 6-N24040 |
| Product Name | 40:1 Gear Ratio, 40 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 40 |
| Pressure Angle | 14.5° |
