001HL21929000 MAHLE Crankshaft Bearing

MAHLE's Engine Bearings (MPN: 001HL21929000) are designed for use in the crankcase of engines, specifically supporting the crankshaft to facilitate smooth rotation. These bearings can be found in various applications, including passenger vehicles and commercial engines. With their ability to reduce friction and wear, they contribute to improved fuel efficiency and a longer engine lifespan. 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.