The KCG3 series consists of gray iron worm wheels with a module of 3, 30 teeth, and a helix angle of 3°55' for single-start right-hand threads. It has a 20 mm bore, 55 mm hub diameter, 90.21 mm pitch diameter, 96 mm throat diameter, 99 mm outside diameter, and 28 mm face width. The Precision grade is KHK W 002 grade 4, with a normal pressure angle of 14°30', and the material is FC200. Allowable torque at 30 rpm is 46.6 N·m, reducing to 22.2 N·m at 900 rpm, with a backlash of 0.15-0.33 mm and a weight of 1.50 kg. The J-series variants available-on-request
Module 3, 30 Tooth, 1 Start, Right Handed Cast Iron Worm Gear with 25mm 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 | KCG3-30R1J25 | KCG3-30R1J25 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 3, 30 Tooth, 1 Start, Right Handed Cast Iron Worm Gear with 25mm Finished Bore |
| Number of Teeth | 30 | 30 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 90 mm (3.54 inch) | 90 mm (3.54 inch) |
