28 Tooth 20 DP 0.875 in. Round Bore Steel Dog Pattern Gear

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.

Specifications

Bore: 0.875 in. Round
Diametral Pitch: 20
Face Width: 0.375 in.
Finish: Zinc Plated
Material: 4140 Steel
Pitch Diameter: 1.4 in.
Pressure Angle: 14.5 Degrees
Teeth: 28
Weight: 0.15 lbs

Documents

Layout Print(s)

am-0139 28T Small Output.pdf

CAD File(s)

am-0139 28 Small Output Gear.STEP

# Pièce: am-0139

$29.00

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