KPG2-20R1J17 is a right-hand lead plastic worm gear with a module of 2, 20 teeth, one start, and a 17 mm bore. It has a helix angle of 3°42', a pitch diameter of 40.08 mm, an outside diameter of 44 mm, a face width of 46 mm, a hub width of 22 mm, and a total length of 35 mm. The gear is made of MC901 nylon, has a backlash of 0~0.33 mm, and an allowable torque of 4.78 N·m (0.49 kgf·m). The weight is 0.046 kg. The bore is profile shifted to maintain proper center distance. The gear is paired with a stainless steel worm, and the listed allowable torque assumes lubrication to avoid exceeding maximum sliding speed. Dimensional stability may vary with temperature and humidity due to the nylon material.
Module 2, 20 Tooth, 1 Start, Right Handed Nylon Worm Gear with Finished 17mm 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 | KPG2-20R1J17 | KPG2-20R1J17 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 2, 20 Tooth, 1 Start, Right Handed Nylon Worm Gear with Finished 17mm 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) |
