77907600 Kolbenschmidt MAIN BRG SET VW / AUDI 1.8 / 2.0

This Main Bearing Set VW / AUDI 1.8 / 2.0 from Kolbenschmidt is a crucial component for Volkswagen and Audi engines with 1.8L or 2.0L displacements. Installed in the crankshaft within the engine's crankcase, it contributes to improved engine reliability, minimized wear, and optimized overall performance. Crankshaft bearings are precision components facilitating smooth rotary motion between the crankshaft and engine block. Located within the engine’s main and connecting rod bearing bores, these bearings support significant loads and reduce friction generated by reciprocating piston motion. Typically manufactured from tri-metal or polymer-coated steel, they feature a split design for ease of installation and precise clearance control. Oil grooves and channels within the bearing surface maintain a hydrodynamic oil wedge, preventing metal-to-metal contact. Dimensional accuracy and material hardness are critical for maintaining engine performance and longevity, with variations existing for different engine families and load requirements.