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
Length Through Bore 0.284 in
Sprocket Style A
Inch/Metric Inch
Chain No. 40
Width Across Teeth 0.284 in
Outside Dia. 3.617 in
No. of Strands Across 1
Hub Projection N/A
No. of Teeth 21
Bore Range [Min] 0.625 in
Chain Pitch 0.5 in
Material Steel
Hub Dia. N/A
Bore Range [Max] N/A
Pitch Diameter 3.355 in
Hardened Teeth Without Hardened Teeth
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