KCG3-50R2J20 is a right-hand lead, 50:1 reduction, module 3 bronze worm wheel with a 63 mm bore, 150.35 mm pitch diameter, 156 mm throat diameter, 159 mm outside diameter, and 30 mm face width. It is paired with a steel worm (KSW3-R2J20) with a 20 mm hub width, 35 mm total length, 6 x 2.8 mm keyway, M5 set screw, and helix angle of 7°50'. The gear has a precision grade of KHK W 002 grade 4, standard full-depth teeth with a 14°30' normal pressure angle, and allowable torque of 100 N·m at 100 rpm. Backlash ranges from 0.15 to 0.33 mm, and the weight is 2.50 kg.
Module 3, 50 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 20mm 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 | KCG3-50R2J20 | KCG3-50R2J20 |
| Product Name | Right Hand Lead Worm Gears (metric) | Module 3, 50 Tooth, 2 Start, Right Handed Cast Iron Worm Gear with 20mm Finished Bore |
| Number of Teeth | 50 | 50 |
| Design | Metric | |
| Pressure Angle | 20° | 14.5° |
| Mounting | Keyway; Set Screw | Keyway |
| PD | 150 mm (5.91 inch) | 150 mm (5.91 inch) |
