Skip to content Skip to navigation menu
Boston Gear25B21-1/2

25B21-1/2

Finished Bore Sprocket
Item #101853737
  • 25 Chain
  • 21 Teeth
  • 1/2" Bore
  • 1/8 in x 1/16 in Keyway
Boston Gear25B21-1/2
Price Unavailable
Price Unavailable
Pricing is unavailable at this time. Please contact Customer Service for assistance.
Online Ordering Restricted
Please contact Customer Service for assistance.
Contact Customer Service
    Shipment Options
  • 25 Chain
  • 21 Teeth
  • 1/2" Bore
  • 1/8 in x 1/16 in Keyway

features

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

compliances

  • 0
Hub Dia. 1 5/32 in
Chain No. 25
No. of Teeth 21
Outside Dia. 1.809 in
Pitch Diameter 1.598 in
Hardened Teeth Without Hardened Teeth
Width Across Teeth 0.11 in
Hub Projection 0.39 in
Length Through Bore 0.5 in
Material Steel
Inch/Metric Inch
Chain Pitch 0.25 in
Keyway 1/8 x 1/16
Finished Bore 1/2 in
No. of Strands Across 1
Sprocket Style B
Weight 0.251 LB
EAN or UPC 781711456712
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison