S13S1YMK40G30L28 is a left-hand spiral miter gear with a module of 4, 30 teeth, and a 20° pressure angle. It has a 28 mm bore, 124.71 mm pitch diameter, 25 mm face width, and 28 mm hub protrusion. The gear is made of AISI 1045 steel with induction-hardened tooth surfaces (HRC 48-53) and features a ground bore and tooth surfaces with black oxide finish. The spiral angle is 35°, and the gear is designed for 90° shaft intersection with a matching right-hand counterpart.
Standard straight-tooth miter gears are a type of bevel gear set that has a 1:1 ratio, identical dimensions, and the same number of teeth, allowing them to mate with one another and transmit rotational motion at a 90° angle. Although the number of teeth in a spiral miter gear set is the same, the twisting directions are different, preventing them from mating with one another. Our straight-tooth miter gears are manufactured utilizing a CNC Coniflex® interlocking cutting system. Spiral miter gears must be paired with one right-hand thread and one left-hand thread.
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| Stock Drive Products & Sterling Instrument - SDP/SI | |
|---|---|
| Product Category | Gears |
| Product Number | S13S1YMK40G30L28 |
| Product Name | 35° Left handed spiral miter gear, Finish with ground tooth surface & Bore |
| Gear Type | Rack |
| Number of Teeth | 30 |
| Direction | Left |
