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Image for Illustration purposes only. Actual product may vary

78CS12 1 15/16 SPK ENG C BS

$292.73 Each


  • Typically ships in: 1 day
  • Weight: 34.4 lb
  • Free shipping on orders over $20

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Additional Description

Martin Accu-Torch steel sprockets are available for virtually all engineering class chains in style A, B, and C. Also available as split with welded hub and split or solid detachable hub. They can also be furnished as shear pin type. Where possible please specify chain number, pitch diameter, number of teeth, bore and keyway size, and huC Style required. Accu-Torch sprockets are not intended to replace cut tooth roller chain sprockets.
Material Steel Finished Bore Size 1.938 in.
Chain Number 78 Key Way Size 1/2 X 1/4 in.
Chain Pitch 2.609 in. Set Screw Size 1/2-13X1/2 in.
Number of Teeth 12 Set Screw Location (2) Set Screws (1) Over Kw And (1) At 90
Pitch Diameter 10.080 in. Hub Outside Diameter 5.250 in.
Hub Configuration C Length thru Bore 3.875 in.
Bore Type Bored To Size
Storage Dimension Length 10.750 in. Storage Dimension Height 3.875 in.
Storage Dimension Width 10.750 in. Weight 34.00 lbs.


Number Of Teeth 12
Material Steel
Pitch 2.609 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