The KPG3-20R1J19 is a right-hand lead plastic worm gear with a module of 3, 20 teeth, one start, and a 19 mm bore. It is paired with a stainless steel worm, has a helix angle of 3°55', and uses MC901 nylon material. The gear has a pitch diameter of 60.14 mm, an outside diameter of 66 mm, a face width of 28 mm, and a total length of 43 mm. It has an allowable bending torque of 13.7 N·m (1.40 kgf·m) and a backlash range of 0 to 0.38 mm. The weight is 0.13 kg. The gear is profile shifted to maintain correct center distance and is subject to dimensional changes under fluctuating temperature or humidity.
Module 3, 20 Tooth, 1 Start, Right Handed Nylon Worm Gear with Finished 19mm 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 | KPG3-20R1J19 | KPG3-20R1J19 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 3, 20 Tooth, 1 Start, Right Handed Nylon Worm Gear with Finished 19mm Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 60 mm (2.36 inch) | 60 mm (2.36 inch) |
