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DS40A21 A-Plate Double Single Roller Chain Sprocket

$64.79 Each


  • Typically ships in: 1 day
  • Weight: 2.6 lb
  • Free shipping on orders over $20
  • Contiguous U.S. States

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Additional Description

Double single sprockets are precision machined steel spockets and run with two single chains. They are stocked in minimum plain bore, taper bushed and Martin Split Taper style. The minimum plain bores can be quickly modified for your specific application.
Material Steel Hardened Teeth No
Chain Number 40 Hub Configuration A
Chain Pitch 0.500 in. Length thru Bore 1.406 in.
Number of Chain Rows Double Single Construction Detail Solid
Number of Teeth 21 Bore Type Stock Bore
Outside Diameter 3.617 in. Min Bore Size 0.625 in.
Pitch Diameter 3.355 in. Max Bore Size 1.750 in.
Single Strand Tooth Thickness 0.284 in.
Storage Dimension Length 4.000 in. Weight 2.35 lbs.
Storage Dimension Width 4.000 in. Individually Packaged Yes
Storage Dimension Height 1.500 in.


Number Of Teeth 21
Outside Dia 3.617"
Material Steel
Pitch 0.500 in.

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may apply to any return with this manufacturer.

For more information please consult


Product's availability

State of California Proposition 65 Product Warning