An anti-backlash worm gear with 140 teeth, a 14.5° pressure angle, and a 0.2498 inch bore, designed for 64-pitch worm meshing. The gear features a bronze (QQ-B-637 Alloy 464) tooth profile and a 303 stainless steel hub with a clamp-type mounting style. It has a quadruple-threaded worm design, as indicated by the 'S' thread code in the part number. The face width is 0.1875 inch, and it is compatible with matching worms listed 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 | S1B86A-C064B140S |
| Product Name | 140 Teeth, 14.5° Pressure Angle, 0.1875 Face width Anti-backlash worm gear |
| Gear Type | Rack |
| Number of Teeth | 140 |
| Design | English |
| Pressure Angle | 14.5° |
| Features | Anti-backlash |
