435-319-8344
Shopify secure badge

Sprocket 40B42H Heat treated Type B for #40 roller chain 42 tooth

40B42H Type B Hub Sprocket

42 Teeth Heat Treated for #40 Roller Chain

With Keyway and 2 Set Screws

1 Outside dia 6.97"

L.T.B. 1.13"

Pick Your Bore Size

FREE SHIPPING

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”