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Boston Gear40B21-7/8

40B21-7/8

Finished Bore Sprocket
Item #101835740
  • 40 Chain, 21 Tooth, 0.875 in Bore, With Keyway and Setscrew
Boston Gear40B21-7/8
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  • 40 Chain, 21 Tooth, 0.875 in Bore, With Keyway and Setscrew

features

  • Quality design
  • Superior fatigue resistance
  • Long operational life
  • Complete with keyway and setscrew

compliances

  • 0
Chain Pitch 0.5 in
Sprocket Style B
Chain No. 40
Keyway w/Keyway & Setscrew
Finished Bore 7/8 in
Hardened Teeth Without Hardened Teeth
Width Across Teeth 0.284 in
Outside Dia. 3.617 in
Hub Dia. 2 3/4 in
No. of Strands Across 1
No. of Teeth 21
Inch/Metric Inch
Length Through Bore 1 in
Pitch Diameter 3.355 in
Material Steel
Hub Length Thru 0.716 in
Weight 1.801 LB
EAN or UPC 781711150962
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