KBG0.8-20R1 is a bronze worm wheel with module 0.8, 20 teeth, one start, and a right-hand helix angle of 3°17'. It has a plain bore of 5 mm, a pitch diameter of 16.03 mm, an outside diameter of 17.6 mm, a face width of 9 mm, and a total length of 18 mm. The product includes a set screw and is profile shifted for proper center distance. Backlash ranges from 0.04 to 0.22 mm, and the weight is 0.023 kg. Allowable torque at 30 rpm is 1.05 N·m. The material is CAC502 with no heat treatment. Precision grade is KHK W 002 grade 4.
Module 0.8, 20 Tooth, 1 Start, Right Handed Bronze 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 | KBG0.8-20R1 | KBG0.8-20R1 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 0.8, 20 Tooth, 1 Start, Right Handed Bronze Worm Gear with Plain Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 16 mm (0.6299 inch) | 16 mm (0.6299 inch) |
