S1C86Z-P064B120D is a 120-tooth bronze worm gear with a 0.2498 in. bore, designed to mesh with a single, double, or quadruple-threaded 303 stainless steel worm of 64 pitch and 14-1/2° pressure angle. The gear has a pitch diameter of 1.8750 in. and is rated for use with double-threaded worms, as indicated by the 'D' thread code in the part number. The gear material conforms to QQ-B-637 Alloy 464, and the bore tolerance is +0.0005/-0.0000 in. The part is part of a series with standardized bore sizes and thread configurations, including single, double, and quadruple threads.
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-P064B120D |
| Product Name | 60:1 Gear Ratio, 120 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 120 |
| Pressure Angle | 14.5° |
| Material | Bronze; AGMA Q10 / Bronze |
