The S1B84A-C064B120S is an anti-backlash worm gear with 120 teeth, a 0.1875-inch bore, and a clamp-type hub, designed for use with a 64-pitch right-hand single-thread worm. The gear body is made of bronze QQ-B-637 Alloy 464, and the hub is 303 stainless steel, with 302 stainless steel springs for backlash compensation. It features a 14.5° pressure angle and is intended for inch-based applications. The part uses a 66-56 set screw for shaft retention. This part is a variant of the S1D94Z-P064SS series, matching the specifications for 120-teeth, clamp-type, 0.1875-inch bore, single-thread anti-backlash worm gears.
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 | S1B84A-C064B120S |
| Product Name | 120 Teeth, 14.5° Pressure Angle, 0.1875 Face width Anti-backlash worm gear |
| Gear Type | Rack |
| Number of Teeth | 120 |
| Design | English |
| Pressure Angle | 14.5° |
| Features | Anti-backlash |
