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