A worm gear with 55 teeth, a 0.2498 in. bore, and a double-threaded worm, designed for use with a 64-pitch 14.5° pressure angle worm set. The gear is made of bronze QQ-B-637 Alloy 464, and the matching worm is 303 stainless steel. The gear has a 27.5:1 ratio and a pitch diameter of 0.8594 in.
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 | S1C86Z-P064B055D |
| Product Name | 27.5:1 Gear Ratio, 55 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 55 |
| Pressure Angle | 14.5° |
| Material | Bronze; AGMA Q10 / Bronze |
