The A 1Q 5-Y48 is a steel worm with a 48 diametral pitch, double thread, and a 0.333-inch pitch diameter, designed to mesh with bronze worm gears. It has a lead of 0.1309 inch and a lead angle of 7° 7′, with a right-hand helix. The worm features a shaft bore with a tolerance of +0.0008/-0.0000 inch and a soft finish. Its physical dimensions include a pitch diameter of 0.333 inch, an overall length of 0.1869 inch, and a diameter at the base of 0.375 inch.
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 | A 1Q 5-Y48 |
| Product Name | 48DP / 2 Lead / 0.333P.D, 7.11° Right Hand Worm |
| Gear Type | Worm; Rack |
| Direction | Right |
| Pressure Angle | 20° |
| Material | Steel; Carbon Steel/Commercial |
