KCG2-40L1J12 is a left-hand lead worm gear in the KCG2 series, with a module of 2, 40 teeth, 1 start, and a 12 mm bore. It features a gray iron material, standard full-depth teeth with a 14°30' pressure angle, and a precision grade of KHK W 002 grade 4. The gear has a hub width of 13 mm, total length of 55.5 mm, and a 22 mm face width. It delivers allowable torques of 26.7 N·m at 30 rpm, decreasing to 12.3 N·m at 1200 rpm, with a backlash range of 0.10~0.28 mm and a weight of 0.96 kg. The J-series variant is available on request with a 5 mm keyway and M4 set screw. The product is profile-shifted for correct center distance and is not heat-treated.
Module 2, 40 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with 12mm 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 | KCG2-40L1J12 | KCG2-40L1J12 |
| Product Name | Left Hand Lead Worm Gears (metric) | Module 2, 40 Tooth, 1 Start, Left Handed Cast Iron Worm Gear with 12mm Finished Bore |
| Number of Teeth | 40 | 40 |
| Design | Metric | |
| Pressure Angle | 20° | 14.5° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 80 mm (3.15 inch) | 80 mm (3.15 inch) |
