Skip to content Skip to navigation menu
No. 80 - 1" Pitch - Single - Bored to Size Sprocket

80BS21 1 1/4

No. 80 - 1" Pitch - Single - Bored to Size Sprocket
Item #100809780
  • 80 Chain Number
  • 1 Strand
  • 21 Teeth
  • 7.235 in Outside Diameter
  • 1.25 in Finished Bore
  • Without Hardened Teeth
+ Show More + Show Less
No. 80 - 1" Pitch - Single - Bored to Size Sprocket
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
  • 80 Chain Number
  • 1 Strand
  • 21 Teeth
  • 7.235 in Outside Diameter
  • 1.25 in Finished Bore

features

  • Conforms to ANSI B29.1-1975 standards
Bore Type Bored to Size
Pitch Diameter 6.710 in
Length Through Bore 1 3/4 in
Keyway w/Keyway & Set Screw
Inch/Metric Inch
Sprocket Style B
Single Strand Tooth Thickness 0.575 in
Hub Length Thru 1.175 in
Outside Dia. [Min] 7.2350 in
Chain Pitch 1 in
Finished Bore 1 1/4 in
No. of Teeth 21
Chain No. 80
Martin No. 80BS21
Hub Projection 1.17 in
Outside Dia. 7.2350 in
Material Steel
Hardened Teeth Without Hardened Teeth
Keyway Size 1/4 x 1/8
Hub Dia. 4 1/4 in
Pitch Diameter [Min] 6.710 in
Width Across Teeth 0.575 in
Caliper Diameter 6.0657 in
Set Screw Size 5/16-18 X 5/16
No. of Strands Across 1
No. of Screws 2
Weight 9.5 LB
EAN or UPC 697950310558
We're here for you
with Service Centers across the country -
We have your back
Close Compare List Open Compare List Toggle

Product Comparison