Module 3 mild steel right-hand worm with 1 start, 3°55' helix angle, 20 mm normal module, 16 mm shaft diameter, 6 mm × 2.8 mm keyway, M5 set screw, and 19 mm finished bore. Total length is 70 mm, hub width is 20 mm, and weight is 0.58 kg. Precision grade is KHK W 001 grade 4. Made of S45C material with tooth hardness under 194 HB.
Module 3, 1 Start Mild Steel Right Handed Worm with 19mm Finished Bore
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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| QTC METRIC GEARS | Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|---|
| Product Category | Gears | Gears |
| Product Number | KSW3-R1J19 | KSW3-R1J19 |
| Product Name | Commercial & Precision Worms (metric) | Module 3, 1 Start Mild Steel Right Handed Worm with 19mm Finished Bore |
| Design | Metric | |
| Pressure Angle | 20° | 14.5° |
| Material | Steel | Mild Steel / Commercial |
| OD | 50 mm (1.97 inch) | |
| Face Width | 50 mm (1.97 inch) | 50 mm (1.97 inch) |
