A 64-pitch worm gear set with a bronze gear (QQ-B-637 Alloy 464) and a 303 stainless steel worm, available in single, double, or quadruple thread configurations with 1/8, 3/16, or 1/4 inch bores. The gear has a 14-1/2° pressure angle and is designed for 90° shaft arrangements. Gear sizes range from 50 to 360 teeth, with corresponding pitch diameters from 0.7813 to 5.6250 inches. The worm shafts feature screw threads in #2-56, #4-40, or #6-32 sizes, with lead angles from 1°47' to 7°7.5'. All components are manufactured to the SDP-SI 64-pitch standard.
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-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 |
