Skip to content Skip to navigation menu
Boston Gear40B21

40B21

B Style Sprocket
Item #101852486
  • Single Strand, Number 40, Type B, 21 Teeth Roller Chain Sprocket
Boston Gear40B21
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
  • Single Strand, Number 40, Type B, 21 Teeth Roller Chain Sprocket

features

  • Quality design
  • Superior fatigue resistance
  • Long operational life

compliances

  • 0
Outside Dia. 3.617 in
Bore Range [Min] 0.625 in
No. of Teeth 21
Hub Projection 0.716 in
Length Through Bore 1 in
Width Across Teeth 0.284 in
Hub Length Thru 1 in
Sprocket Style B
Inch/Metric Inch
Chain No. 40
Hardened Teeth Without Hardened Teeth
Pitch Diameter 3.355 in
Bore Range [Max] N/A
Material Steel
No. of Strands Across 1
Hub Dia. 2 3/4 in
Chain Pitch 0.5 in
Weight 2.201 LB
EAN or UPC 781711157084
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison