28T 20DP 0.874 in. Round Bore, Steel Gear
am-0139
$16.00
This gear can be located on the shifting shaft of an AndyMark transmission (AM Shifter, Super Shifter). It is to be paired with a 35 tooth Medium Cluster Gear. This 28 Small Output Gear and the 35 ...Read More
Product Overview
This gear can be located on the shifting shaft of an AndyMark transmission (AM Shifter, Super Shifter). It is to be paired with a 35 tooth Medium Cluster Gear. This 28 Small Output Gear and the 35 Medium Cluster gear replace the standard set of Small Output Gear (35 tooth) and Medium Cluster Gear (28 tooth) on AndyMark transmissions.
Gear Ratios:
35 Medium Cluster Gear : 28 Small Output Gear --> 4:1 ratio between high and low gear on an AndyMark transmission (AM Shifter, Super Shifter). The standard ratio for these same transmissions are 2.56:1. This gear provides a TALLER ratio between high and low gear on these transmissions.
Gear Ratios:
35 Medium Cluster Gear : 28 Small Output Gear --> 4:1 ratio between high and low gear on an AndyMark transmission (AM Shifter, Super Shifter). The standard ratio for these same transmissions are 2.56:1. This gear provides a TALLER ratio between high and low gear on these transmissions.
Specifications
- Bore: 0.874 in., with dog pockets, for pressing in the FR6 bearing
- Diametral Pitch: 20
- Face Width: 3/8 in.
- Material: 4140 steel, cold rolled
- Number of Teeth: 28
- Pitch Diameter: 1.4 in.
- Pressure Angle: 14.5
- Weight: 0.088 lbs
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Recommendations
2 reviews
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Very Good
This product is very high quality and just as the CAD files and drawings show. We have had very good luck with it in a two-speed gearbox we made.
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Review
5 Stars
