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No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket

40BS21 5/8

No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
Item #100807073
  • 40 Chain Number
  • 1 Strand
  • 21 Teeth
  • 3.617 in Outside Diameter
  • 0.625 in Finished Bore
  • Without Hardened Teeth
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No. 40 - 1/2" Pitch - Single - Bored to Size Sprocket
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    Shipment Options
  • 40 Chain Number
  • 1 Strand
  • 21 Teeth
  • 3.617 in Outside Diameter
  • 0.625 in Finished Bore

features

  • Conforms to ANSI B29.1-1975 standards
Chain No. 40
Bore Type Finished Bore
Width Across Teeth 0.284 in
Hub Projection 0.72 in
Outside Dia. 3.6170 in
Chain Sprocket Pitch 0.5 in
Inch/Metric Inch
Length Through Bore 1 in
Caliper Diameter 3.0334 in
No. of Screws 2
O.D. 3.617 in
Keyway w/Keyway & Set Screw
Hub Dia. 2 3/4 in
Sprocket Style B
Martin No. 40BS21
Chain Sprocket Number 40
Material External Use Steel
Pitch Diameter [Min] 3.355 in
No. of Teeth 21
Material Steel
Construction Internal Solid
Key Way Size 3/16 X 3/32 in
Material Internal Use Atomized Metals
Chain Pitch 0.500 in
No. of Teeth Rows Strands 1
Set Screw Size 1/4-20 UNC
Pitch Diameter 3.355 in
Pitch Dia. 3.355 in
Hub O.D. 2.75 in
Hub Length Thru 0.716 in
Outside Dia. [Min] 3.6170 in
Hardened Teeth Without Hardened Teeth
Set Screw Location (1) Over Keyway and (1) At 90°
Finished Bore 0.625 in - 5/8 in
No. of Strands Across 1
Single Strand Tooth Thickness 0.284 in
Keyway Size 3/16 x 3/32 in
Finished Bore Size 0.625 in
Weight 1.74 LB
EAN or UPC 697950148786
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