The bearing cover screw H 11153 is a high-strength fastening element designed to secure the bearing cover within the Sulzer ASL25 engine’s rotating assembly. Engineered to maintain precise clamping force under continuous vibration, thermal expansion, and dynamic loading, this screw ensures correct bearing alignment and structural integrity of the bearing housing. Its controlled material properties and precision threading provide consistent preload and resistance to loosening, directly supporting reliable bearing performance and long-term engine durability.