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Boston Gear25B21-3/8

25B21-3/8

Finished Bore Sprocket
Item #101854178
  • 25 Chain
  • 21 Teeth
  • 3/8" Bore
  • 3/32 in x 3/64 in Keyway
Boston Gear25B21-3/8
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    Shipment Options
  • 25 Chain
  • 21 Teeth
  • 3/8" Bore
  • 3/32 in x 3/64 in Keyway

features

  • Quality design
  • Superior fatigue resistance
  • Long operational life
  • 10-32 setscrews

compliances

  • 0
Chain No. 25
Outside Dia. 1.809 in
Hardened Teeth Without Hardened Teeth
Material Steel
Inch/Metric Inch
Sprocket Style B
No. of Strands Across 1
Length Through Bore 0.5 in
Hub Projection 0.39 in
Finished Bore 3/8 in
Chain Pitch 0.25 in
Pitch Diameter 1.598 in
No. of Teeth 21
Keyway 3/32 x 3/64
Width Across Teeth 0.11 in
Hub Dia. 1 5/32 in
Weight 0.267 LB
EAN or UPC 781711456705
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