41B42H Type B Hub Sprocket

42 Teeth Heat Treated for #41 Roller Chain

With Keyway and 2 Set Screws

Outside dia 6.97"

LTB = 1 1/16"

Hub Diameter = 3 1/4"

Pick Your Bore Size

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Standard Keyway Sizes
Listed are the standard keyway sizes furnished with corresponding bore sizes.

Bore To Keyway
1/2” to 9/16” = 1/8” X 1/16”
5/8” to 7/8” = 3/16” X 3/32”
15/16” to 1-1/4” = 1/4” X 1/8”
1-5/16” to 1-3/8” = 5/16” X 5/32”
1-7/16” to 1-3/4” = 3/8” X 3/16”
1-3/16” to 2-1/4” = 1/2” X 1/4”