Mac Mill Chain Sprockets are generally Flame Cut from mild steel plate or the recommended QT400 hardened plate.

  • Machined or precision hobbed sprockets are also available for high speed applications
  • Split to bolt or split for welding sprockets are available for difficult mounting or dismounting applications
  • Mac Chain can supply brass, nylon or UHMW bushed Idlers complete with grease grooves and grease fittings

Basic Specs

Part Number Average Pitch Number of Teeth Pin Style Pitch Diameter Max. Bore Shroud Diameter
Diagram Label            
WR78-4-7 4.000 7 A,B,C 9.22 3 7/16 7.060

More Specs

Part Number Tooth Face
Diagram Label  
WR78-4-7 1"

Questions about ordering? Call us! Or check our FAQ Section.