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Roller Chain Sprocket, 21 Teeth, 40BS21

For farm machinery or utility equipment that is chain driven. Be sure to replace worn out chain sprockets to keep the motion running smoothly. This chain sprocket is constructed from steel with 21 teeth and requires a size 40 roller chain.
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Availability:
#16404
Product Overview
Specifications
  • 40 chain 21 teeth 1" rd bore
  • Induction hardened teeth: 21
  • Keyway: 1/4" x 1/8"
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