Renk AG RENK AG is a member of the Volkswagen and MAN Group. RENK AG ranks among the world's foremost manufacturers of propulsion components and test systems. In tracked vehicle transmissions, slide bearings and naval gear units, the Company is undisputed world market leader. RENK has four independent divisions: Vehicle Transmissions, Slide Bearings, Special Gear Units, and Standard Gear Units. The individual strengths and the specific product expertise of the divisions are bundled and through close cooperation put to optimum use within the Group. Renk AG