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Martin40BS57 1 1/4

40BS57 1 1/4

Finished Bore Sprocket
Item #100807451
  • 40 Chain Number
  • 1 Strand
  • 57 Teeth
  • 9.363 in Outside Diameter
  • 1.25 in Finished Bore
  • Without Hardened Teeth
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Martin40BS57 1 1/4
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    Shipment Options
  • 40 Chain Number
  • 1 Strand
  • 57 Teeth
  • 9.363 in Outside Diameter
  • 1.25 in Finished Bore

features

  • ANSI 100 chain
  • Bored to size
  • Tolerances meet or exceed ANSI standards
  • Manufactured of high carbon steel
  • Precise machining and processes ensure consistent finish and high quality
  • Bores are concentric to pitch line, minimizing run out

compliances

  • Conforms to ANSI B29.1-1975 standards
Sprocket Style B
Hub Dia. 3 1/2 in
Bore Type Bored to Size
Outside Dia. 9.363 in
No. of Teeth 57
Keyway w/Keyway & Set Screw
Inch/Metric Inch
Set Screw Size 5/16-18 X 5/16
Outside Dia. [Min] 9.363 in
Pitch Diameter [Min] 9.0764 in
Width Across Teeth 0.284 in
Chain No. 40
Material Steel
No. of Strands Across 1
Single Strand Tooth Thickness 0.284 in
Pitch Diameter 9.0764 in
Keyway Size 1/4 x 1/8
Caliper Diameter 8.761 in
Hardened Teeth Without Hardened Teeth
Hub Projection 0.84 in
No. of Screws 2
Finished Bore 1 1/4 in
Length Through Bore 1.125 in
Chain Pitch 0.5 in
Hub Length Thru 0.841 in
Weight 7.02 LB
EAN or UPC 697950302492
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