KSUW3-R2 is a stainless steel worm with a module of 3, 2 starts, right-hand helix angle of 7°50', and a plain bore. It has a hub diameter of 50 mm, pitch diameter of 60.57 mm, outside diameter of 66 mm, face width of 28 mm, hub width of 15 mm, and total length of 43 mm. The worm is made of SUS303 stainless steel with no heat treatment, and the tooth hardness is less than 187 HB. A keyway and set screw are included, with dimensions 6 mm width × 2.8 mm depth and M5 set screw. The weight is 0.59 kg. The product generates axial thrust forces and requires lubrication when operated above recommended sliding speeds.
Module 3, 2 Start Stainless Steel Worm 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 | KSUW3-R2 | KSUW3-R2 |
| Product Name | Commercial & Precision Worms (metric) | Module 3, 2 Start Stainless Steel Worm with Plain Bore |
| Design | Metric | |
| Pressure Angle | 20° | 20° |
| Material | Stainless | Stainless; Stainless Steel / Commercial |
| OD | 50 mm (1.97 inch) |
