Black Ace Dual Pitch Roller Chain Sprockets are produced with the best integrity. You will recognize value, as these sprockets are flame-cut and machined with the best precision in the marketplace.

ANSI Standard Torch Profiles
A – B – C Hub Types
A Type (no hub) typically found in weld-on applications.
B Type (hub using one side) found in applications where clearance width is narrow. More economical than C Type.
C Type (hub upon both sides) used in applications where B Type is not wide enough to withstand torques made by drive.
Split Style Structure – Once you use a Split Sprocket, you might never want to employ a setscrew mount style again. Removal or installation is a breeze. May be used in practically all applications. Another advantage to Dark Ace’s split sprockets is that the shaft/keyway chain sprocket security is much tighter when compared to a typical setscrew mount.
Hardening Available – Flame hardening of sprockets is definitely available as an option.