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the 16B SA1 attachment has a straight tab on one side with one hole for mounting
UCFCS212-39 bearings are commonly used in applications such as
which insures proper contact between the #120 roller chain and sprocket which prevents premature wear or breakage
Threads: 1/4"
Sheave Size: 45V520SD
Premium 60SDS21 Sprocket Blackstar Sprockets the 16B SA1 attachment hasThis 60SDS21 sprocket is a durable, high quality, and precision sprocket with hardened teeth that is manufactured to accept a SDS bushing. Sprockets that have hardened teeth last longer, perform better, and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #60 roller chain and sprocket. Meeting strict ANSI Standards
