061NS21083000 MAHLE Camshaft Bearing

MAHLE's 061NS21083000 Engine Bearings are designed for use in engine heads and valve trains, providing optimal performance by minimizing wear and tear on moving parts. Camshafts are rotating shafts with precisely shaped lobes—cams—that control the opening and closing of engine intake and exhaust valves. Located within the cylinder head(s), camshafts dictate valve timing and lift, directly impacting engine performance characteristics. They are driven by the crankshaft via a timing belt, chain, or gears, ensuring synchronized operation. Camshafts can utilize various lobe designs—including single, dual, or variable valve timing (VVT) configurations—to optimize airflow for specific engine speeds and loads. Construction typically involves hardened steel alloys with precisely ground cam profiles and journals for durability and accurate valve actuation.