A 48-pitch worm gear made of bronze QQ-B-637 Alloy 464 with a 14-1/2° pressure angle for single-thread variants or 20° for double-thread variants, designed to mesh with 303 stainless steel worms, and available in bore sizes of 0.1248 in., 0.1873 in., or 0.2498 in. The gear series includes tooth counts from 30 to 180, with standard thread types coded as single (S), double (D), or quadruple (Q), and conforms to AGMA 10 standards. The exact tooth count of 85 is not listed in the available specifications.
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 | S1C83Z-P048B085Q |
| Product Name | 21.25:1 Gear Ratio, 85 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 85 |
| Pressure Angle | 25° |
| Material | Bronze; AGMA Q10 / Bronze |
