A 48-pitch worm gear with 70 teeth, a 0.1873 inch bore, and a single-threaded design, made from bronze QQ-B-637 Alloy 464, intended to mesh with matching 303 stainless steel worms. The gear has a 14-1/2° pressure angle, a pitch diameter of 1.4583 inches, and is mounted with a set screw. This part belongs to a series where bore size and thread count define variants, and the 70-tooth, 0.1873 inch bore variant is specified in the catalog.
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 | S1C84Z-P048B070S |
| Product Name | 70:1 Gear Ratio, 70 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 70 |
| Pressure Angle | 14.5° |
| Material | Bronze; AGMA Q10 / Bronze |
