KBG0.5-20R2 is a right-hand lead bronze worm gear with a module of 0.5, 20 teeth, 2 starts, and a plain bore of 4 mm. It has a pitch diameter of 10.04 mm, an outside diameter of 11 mm, a face width of 5 mm, and a total length of 12 mm. The gear is profile-shifted for proper center distance, has a backlash of 0 to 0.16 mm, and weighs 0.0061 kg. A set screw is included for mounting. Allowable torque at 30 rpm is 3.5 N·m, decreasing to 0.12 N·m at 1200 rpm. Material is CAC502 with no heat treatment applied.
Module 0.5, 20 Tooth, 2 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 | KBG0.5-20R2 | KBG0.5-20R2 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 0.5, 20 Tooth, 2 Start, Right Handed Bronze Worm Gear with Plain Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 10 mm (0.3937 inch) | 10 mm (0.3937 inch) |
