KCG2.5-20R2J16 is a right-hand lead bronze worm wheel with a 20:1 reduction ratio, 20 teeth, 2 starts, 7°46' helix angle, m2.5 module, H1 bore shape, 12mm bore, 35mm hub diameter, 50.46mm pitch diameter, 55mm throat diameter, 57.5mm outside diameter, and 22mm face width. It has a 16mm finished bore, keyway 5mm width × 2.3mm depth, and weighs 0.37kg. The wheel is made of CAC502 with a sand mold casting finish, meets KHK W 002 grade 4 precision, and has a backlash range of 0.13-0.31mm. The associated worm (KSW2.5-R2J16) has a 16mm total length, 30mm pitch diameter, 37mm outside diameter, and 18mm hub width.
Module 2.5, 20 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 16mm Finished 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 | KCG2.5-20R2J16 | KCG2.5-20R2J16 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 2.5, 20 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 16mm Finished Bore |
| Number of Teeth | 20 | 20 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 50 mm (1.97 inch) | 50 mm (1.97 inch) |
