A 64-pitch worm gear with 75 teeth and a 0.2498-inch bore, designed to mesh with a double-threaded worm, offering a 37.5:1 gear ratio. The gear is made of Bronze QQ-B-637 Alloy 464 and is intended for use with 303 stainless steel worms. It has a 14.5° pressure angle and a single-start lead configuration for the mating worm. The gear's pitch diameter is 1.1719 inches, and it includes a 7/64-inch counterbore for mounting screw clearance.
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-P064B075D |
| Product Name | 37.5:1 Gear Ratio, 75 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 75 |
| Pressure Angle | 14.5° |
| Material | Bronze; AGMA Q10 / Bronze |
