Martin

Martin 80BS21 2 15/16 Type B Bored-to-Size Single Strand Welded Roller Chain Sprocket, 2-15/16 in Dia Bore, 7.235 in OD, #80 Chain, 21 Teeth, 1 in Pitch, Steel

80BS21-2-15/16-MAR MFG #: 80BS21 2 15/16
$185.70 / EA
Non-Stock Item
Martin 80BS21 2 15/16 Type B Bored-to-Size Single Strand Welded Roller Chain Sprocket, 2-15/16 in Dia Bore, 7.235 in OD, #80 Chain, 21 Teeth, 1 in Pitch, Steel
  • Bore Diameter: 2-15/16 in
  • Chain Size: #80
  • Country of Origin: US
  • Hub Diameter: 4-1/4 in
  • Keyway Size: 3/4 x 3/8 in
  • Length Through Bore: 1-3/4 in
  • Manufacturer Name: Martin Sprocket & Gear
  • Material: Steel
  • Number of Teeth: 21
  • Outside Diameter: 7.235 in
  • Pitch: 1 in
  • Pitch Diameter: 6.7095 in
  • Screw Size: 5/8-11 x 5/8 in
  • Type: Type B Bored-to-Size Single Strand Welded
These finished bore sprockets are shaft ready and come complete with keyways and setscrews. The keyways are on center line of the tooth. Bored to size sprockets with 1/2 in bores and smaller are stocked with (2) setscrews only.
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  • Standards
  • Item Features
ANSI Specified|B29.1 - 1975
  • Precise machining and processes ensure consistent finish and high quality
  • Bores are concentric to pitch line, minimizing run out
  • 2 set screws keyed on centerline of tooth
  • https://www.youtube.com/watch?v=fSomOMNB_-Q