KSW2.5-L1J15 is a left-handed, single-start steel worm with a 15 mm bore, module 2.5, and a helix angle of 3°52'. The worm has a keyway of 5 mm width by 2.3 mm depth, an M4 set screw, and a total length of 63 mm. It weighs 0.39 kg and is designed for use with bronze or gray iron worm wheels. The precision grade is KHK W 001 grade 4, with a normal pressure angle of 20° and a material specification of S45C. Heat treatment is not applied, and tooth hardness is less than 194 HB. The product is part of the J series, available-on-request
Module 2.5, 1 Start Mild Steel Left Handed Worm with 15mm 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 | KSW2.5-L1J15 | KSW2.5-L1J15 |
| Product Name | Commercial & Precision Worms (metric) | Module 2.5, 1 Start Mild Steel Left Handed Worm with 15mm Finished Bore |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Material | Steel | Mild Steel / Commercial |
| OD | 42 mm (1.65 inch) | |
| Face Width | 45 mm (1.77 inch) | 45 mm (1.77 inch) |