Centre Coupling Flange / Gear Box Coupling Flange / Differential Coupling Flange Home Centre Coupling Flange/Gear Box Coupling Flange/Differential Coupling Flange Companion Flanges All the Component Flanges are manufactured on CNC Machines.We manufacture a total 350 variety of companion flamges suitable for Gear Box (GB 40, GB 60, GB 75, GB 1150, ZF, EATON, 9 SPEED), Center Joint Kit & Differential (Input, output & Thru Shaft).The flanges are tested on various pre-defined parameters to maintain accuracy.The Flanges are coated with special coat to increase their life & also improve their aesthetics.