KCG2.5-20L1J15 is a left-hand lead worm gear in the KCG series with a module of 2.5, 20 teeth, 1 start, and a helix angle of 3°52'. It has a bore diameter of 12 mm, hub diameter of 35 mm, pitch diameter of 50.11 mm, outside diameter of 55 mm, and face width of 22 mm. The gear is made of gray iron with a sand mold casting finish and is designed for use with a steel worm. The J-series variant includes a keyway of 5 mm width by 2.3 mm depth and a set screw size of M4, with a total length of 63 mm and a weight of 0.39 kg. It complies with KHK W 002 grade 4 precision standards.
Module 2.5, 20 Tooth, 1 Start, Left Handed Cast Iron Worm Gear 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 | KCG2.5-20L1J15 | KCG2.5-20L1J15 |
| Product Name | Left Hand Lead Worm Gears (metric) | Module 2.5, 20 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with 15mm Finished Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 50 mm (1.97 inch) | 50 mm (1.97 inch) |
