KCG2.5-50R2J15 is a right-hand helical worm gear with a module of 2.5, 50 teeth, 2 starts, and a 7°46' helix angle, mounted on a 15 mm bore. The part is made of gray iron with a sand mold casting finish, features a face width of 22 mm, a 126.16 mm pitch diameter, and an outside diameter of 132.5 mm. The J15 suffix indicates a keyed shaft with a 5 mm × 2.3 mm keyway and an M4 set screw, and a total length of 30 mm. The allowable torque at 100 rpm is 59.0 N·m, with a backlash range of 0.13 to 0.31 mm and a weight of 1.46 kg. The gear meets KHK W 002 grade 4 precision standards.
Module 2.5, 50 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 15mm 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 | KCG2.5-50R2J15 | KCG2.5-50R2J15 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 2.5, 50 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 15mm Finished Bore |
| Number of Teeth | 50 | 50 |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 125 mm (4.92 inch) | 125 mm (4.92 inch) |
