Black Ace Double Pitch Roller Chain Sprockets are manufactured with the highest integrity. You will recognize value, as these sprockets are flame-cut and machined with the highest 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. Less sprockets expensive than C Type.
C Type (hub on both sides) used in applications where B Type isn’t wide enough to withstand torques made by drive.
Split Style Structure – Once you use a Split Sprocket, you might never want to use a setscrew mount design again. Removal or installation is a breeze. Can be used in practically all applications. Another advantage to Dark Ace’s split sprockets is usually that the shaft/keyway security is much tighter than a typical setscrew mount.
Hardening Available – Flame hardening of sprockets is usually available as an option.