A 1T 6-Y484008 is a 48-pitch molded worm gear with 40 teeth, a pitch diameter of 0.833 inches, an outside diameter of 0.875 inches, and a bore size of 0.2500 inches with a #6-32 set screw. It has a face width of 3/16 inch, a hub diameter of 7/16 inch, a hub length of 1/2 inch, and a hub projection of 1/4 inch. The gear is made of acetal with a brass insert and is designed to mesh with standard steel or brass worms at a 20° pressure angle.
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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| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | A 1T 6-Y484008 |
| Product Name | 20:1 Gear Ratio, 40 Teeth, Worm Gear |
| Gear Type | Rack |
| Number of Teeth | 40 |
| Pressure Angle | 20° |
