KSW3-L2J20 is a module 3, 2-start, left-handed steel worm with a 20 mm bore, 6 mm × 2.8 mm keyway, M5 set screw, and a total length of 70 mm. It has a precision grade of KHK W 001 grade 4, a normal pressure angle of 14° 30', and a helix angle of 7°50'. The worm is made of S45C steel with a tooth hardness of less than 194 HB, and weighs 0.56 kg. It is designed for use with KCG and KBG series worm wheels and produces an axial thrust force requiring careful mounting consideration.
Module 3, 2 Start Mild Steel Left Handed Worm with 20mm 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-L2J20 | KSW3-L2J20 |
| Product Name | Commercial & Precision Worms (metric) | Module 3, 2 Start Mild Steel Left Handed Worm with 20mm 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) |
