Specifications

• Chain Number & Pitch
  40 / 1/2 in
• Product Type
  Stock Bore Sprockets
• Hub Style
  A
• Number Of Teeth
  21
• Bore Type
  Rough Stock Bore
• Number Of Strands Across
  1
• Material
  Steel
• Number Of Hubs
  0
• Bore Range
  0.6250 to 1.8750 in
• Length Through Bore
  0.2840 in
• Hardened Teeth
  With Hardened Teeth
• Pitch Type
  Single
• Hub Type
  A
• Outside Diameter
  3.6170 in
• Pitch Diameter
  3.3548 in
• Maximum Bore Diameter
  1.8750 in
• Tooth Width
  0.284 in
• Number Of Strands
  1
• Manufacturer Catalog Number
  40A21
• Manufacturer Upc Number
  662289317790
• UPC_NO
  662289317790
• Manufacturer Product Page
  Click here
• Manufacturer Catalog
  Click here
• Weight
  0.56 lbs