The part is a 48-pitch worm gear with a double-threaded design, made of bronze QQ-B-637 Alloy 464, intended for use with matching 303 stainless steel worms. It has a 0.1873 in. bore and a 0.375 in. screw hole size, with a 20° pressure angle. The gear is part of a series that includes tooth counts from 40 to 50 in 5-tooth increments; 35 teeth is not among the listed options.
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-P048B035D |
| Product Name | 17.5:1 Gear Ratio, 35 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 35 |
| Pressure Angle | 20° |
| Material | Bronze; AGMA Q10 / Bronze |
