KBG1.5-20R1 is a bronze worm gear with module 1.5, 20 teeth, one start, and right-handed helix. It has a bore diameter of 8 mm, hub diameter of 22 mm, pitch diameter of 30.05 mm, throat diameter of 33 mm, outside diameter of 34.5 mm, and face width of 12 mm. The gear has a hub width of 10 mm, total length of 22 mm, and mounting distance of 27.5 mm. It weighs 0.10 kg and has a backlash range of 0.08 to 0.26 mm. Precision grade is KHK W 002 grade 4, with standard full-depth teeth at a 20° normal pressure angle. Material is CAC502 (formerly JIS PBC2). Allowable torque at 30 rpm is 4.76 N·m, declining with increasing rpm.
Module 1.5, 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 | KBG1.5-20R1 | KBG1.5-20R1 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 1.5, 20 Tooth, 1 Start, Right Handed Bronze Worm Gear with Plain Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| PD | 30 mm (1.18 inch) | 30 mm (1.18 inch) |
