ACL bearings are used for tuning and engine upgrades where you want better quality with higher bearing capacity than normal standard bearings. Improvements of material, dynamic thickness, heat conduction, oil grooves and oil distribution are some of the points that make ACL one of the leading bearing manufacturers. Bearing data Part number: 8B1591H Bearing size: .025 Bearing half type: Identical halves Bearing material: F781 Technical data (mm) Max overall length: 17 Max shaft size: 48.991 Max tunnel size: 53.013 Max vertical oil clearance: 0.096 Max wall at crown: 1.993 Min shaft size: 48.975 Min tunnel size: 53 Min vertical oil clearance: 0.049 Technical data (in) Max overall length: 0.6693 Max shaft size: 1.9288 Max tunnel size: 2.0871 Max vertical oil clearance: 0.0038 Max wall at crown: 0.0785 Min shaft size: 1.9281 Min tunnel size: 2.0866 Min vertical oil clearance: 0.0019 Engine code S62B50 Application BMW S62B50 4941cc V8 DOHC 4v