Skip to content Skip to navigation menu
Boston Gear40A21

40A21

A Plate Sprocket
Item #101871718
  • Single Strand, Number 40, Type A, 21 Teeth Roller Chain Sprocket
Boston Gear40A21
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 A, 21 Teeth Roller Chain Sprocket

features

  • Quality design
  • Superior fatigue resistance
  • Long operational life

compliances

  • 0
Hardened Teeth Without Hardened Teeth
Bore Range [Min] 0.625 in
No. of Strands Across 1
Material Steel
Inch/Metric Inch
Outside Dia. 3.617 in
Chain Pitch 0.5 in
Bore Range [Max] N/A
Hub Projection N/A
Chain No. 40
Sprocket Style A
Width Across Teeth 0.284 in
Hub Dia. N/A
No. of Teeth 21
Pitch Diameter 3.355 in
Length Through Bore 0.284 in
Weight 0.595 LB
EAN or UPC 781711567470
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison