An anti-backlash worm gear in the 48-pitch series, constructed with bronze QQ-B-637 Alloy 464 teeth, 303 stainless steel hub, and 302 stainless steel spring, available in pin or clamp type hubs with 1/8, 3/16, or 1/4 inch bore sizes. The gear is designed for single, double, or quadruple thread worms with pressure angles of 14-1/2°, 20°, or 25° respectively, and includes set screws for secure mounting. Available tooth counts are 70, 78, 80, 84, 90, 96, and 100, with matching worm options specified by catalog number.
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 | S1B83A-C048B072D |
| Product Name | 72 Teeth, 20° Pressure Angle, 0.1875 Face width Anti-backlash worm gear |
| Gear Type | Rack |
| Number of Teeth | 72 |
| Design | English |
| Pressure Angle | 20° |
| Features | Anti-backlash |
