The KPG2-20R2 is a right-hand, 2-start, module 2, 20-tooth plastic worm gear with a 10 mm bore, made of MC901 nylon, with a pitch diameter of 40.34 mm, face width of 22 mm, hub width of 13 mm, total length of 35 mm, mounting distance of 35.5 mm, allowable torque of 4.82 N·m (0.49 kgf·m), backlash of 0~0.33 mm, and weight of 0.046 kg. The gear shaft bore is designated H1 and keyed per JIS B1301, Js9 tolerance. The worm gear is profile shifted for proper center distance and requires lubrication when operated above the bracketed torque value due to sliding speed limitations.
Module 2, 20 Tooth, 2 Start, Right Handed Nylon Worm Gear with Finished 10mm 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 | KPG2-20R2J10 | KPG2-20R2J10 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 2, 20 Tooth, 2 Start, Right Handed Nylon Worm Gear with Finished 10mm Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 40 mm (1.57 inch) | 40 mm (1.57 inch) |
