S1D93Z-P048SD is a 48-pitch, double-threaded stainless steel worm with a 0.1248 in. bore, a 7.07° lead angle, and a .1309 in. lead, designed to mesh with 48-pitch bronze worm gears. It mates with #2-56 set screws and is made of 303 stainless steel. This part is part of a series of worms with 14-1/2°, 20°, and 25° pressure angles, specifically the 20° variant for this model.
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 | S1D93Z-P048SD |
| Product Name | 48DP/2 Lead/.33PD, 20° Pressure Angle Stainless Steel Worm |
| Gear Type | Rack |
| Pressure Angle | 20° |
| Material | Stainless; Stainless / AGMA Q10 |
| AGMA | AGMA Q10 |
