The KCG3-50L1J20 is a left-hand lead worm gear from the KCG Series, with a 50:1 reduction ratio, module 3, 50 teeth, and one start. It features a 20 mm bore, 150.35 mm pitch diameter, 156 mm throat diameter, 159 mm outside diameter, and 30 mm face width. The gear is made of gray iron (FC200), has a normal pressure angle of 14°30', and a helix angle of 3°55'. It is profile-shifted for proper center distance and has an allowable torque of 121 N·m at 30 rpm, 100 N·m at 100 rpm, 81.1 N·m at 300 rpm, 68.4 N·m at 600 rpm, and 60.5 N·m at 900 rpm. Backlash is specified between 0.15 and 0.33 mm, and the weight is 2.50 kg.
Module 3, 50 Tooth, 1 Start, Left Handed Cast Iron Worm Gear 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 | KCG3-50L1J20 | KCG3-50L1J20 |
| Product Name | Left Hand Lead Worm Gears (metric) | Module 3, 50 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with 20mm Finished Bore |
| Number of Teeth | 50 | 50 |
| Design | Metric | |
| Pressure Angle | 20° | 14.5° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 150 mm (5.91 inch) | 150 mm (5.91 inch) |
