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Martin 40BS21 3/4 40B21-3/4
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Martin
40BS21 3/4

Martin 40BS21 3/4 Bored-to-Size Type BS Single Pitch Roller Chain Sprocket With Keyway, 3/4 in Dia Bore, 3.617 in OD, #40 Chain, 21 Teeth, 1/2 in Pitch, Steel

  • Manufacturer: Martin Sprocket & Gear
  • Brand: Martin
  • BSC Item#: 40B21-3/4
  • MPN: 40BS21 3/4
  • UPC: 697950148779
  • Min. Order Qty: 1
  • Qty. Interval: 1
    • Availability: Call for Availability

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.

Martin Single Pitch Roller Chain Sprocket, Bored-to-Size Type BS, 3/4 in Bore Dia, 3.617 in Outside Dia, #40 Chain, 21 Teeth, 1/2 in Pitch, 3.355 in, 2-3/4 in Hub Dia, 1/4-20 x 1/4 in Screw, 3/16 x 3/32 in Keyway, 1 in Length Through Bore, Steel

Type      :      Bored-to-Size Type BS
Bore Diameter      :      3/4 in
Outside Diameter      :      3.617 in
Chain Size      :      #40
Number of Teeth      :      21
Pitch      :      1/2 in
Pitch Diameter      :      3.355 in
Hub Diameter      :      2-3/4 in
Screw Size      :      1/4-20 x 1/4 in
Keyway Size      :      3/16 x 3/32 in
Length Through Bore      :      1 in
Material      :      Steel
  • Keyway is on center line of tooth
  • Stock finished bores
  • Non-hardened teeth
  • pdf Catalog https://www.bsc-ind.com//ASSETS/DOCUMENTS/ITEMS/EN/Martin_41SH32_Catalog.pdf
Standard/Approvals      :      PROP65: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov