The KCG3-30L1 is a left-hand lead bronze worm wheel with a 30:1 reduction ratio, 3 mm normal module, 30 teeth, and one start, featuring a 20 mm bore, 55 mm hub diameter, 90.21 mm pitch diameter, 96 mm outside diameter, and 28 mm face width. It operates with a 3°55' helix angle and is designed for use with matching steel worms. The worm wheel has a sand mold casting finish, standard full-depth gear teeth with a 14°30' normal pressure angle, and is made from CAC502 material. Maximum allowable torque at 30 rpm is 46.6 N·m, decreasing to 22.2 N·m at 900 rpm, with backlash ranging from 0.15 to 0.33 mm and a weight of 1.50 kg.
Module 3, 30 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with Plain 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 | KCG3-30L1 | KCG3-30L1 |
| Product Name | Left Hand Lead Worm Gears (metric) | Module 3, 30 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with Plain Bore |
| Number of Teeth | 30 | 30 |
| Design | Metric | |
| Pressure Angle | 20° | 14.5° |
| PD | 90 mm (3.54 inch) | 90 mm (3.54 inch) |
