KCG2.5-20R1 is a bronze worm wheel with a 2.5 module, 20 teeth, 1 start, right-hand helix angle of 3°52', and a H1 bore shape. It has a bore diameter of 12 mm, hub diameter of 35 mm, pitch diameter of 50.11 mm, throat diameter of 55 mm, outside diameter of 57.5 mm, and face width of 22 mm. The wheel is cast from CAC502 material with no heat treatment and conforms to KHK W 002 grade 4 precision. Allowable torque at 30 rpm is 12.9 N·m, with backlash specified between 0.13 and 0.31 mm, and a weight of 0.40 kg.
Module 2.5, 20 Tooth, 1 Start, Right 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 | KCG2.5-20R1 | KCG2.5-20R1 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 2.5, 20 Tooth, 1 Start, Right Handed Cast Iron Worm Gear with Plain Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 50 mm (1.97 inch) | 50 mm (1.97 inch) |
