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: 5M2908H Bearing size: .025 Bearing half type: Identical halves Bearing material: F780 Technical data (mm) Max overall length: 20.75 Max shaft size: 53 Max tunnel size: 56.735 Max vertical oil clearance: 0.074 Max wall at crown: 1.843 Min shaft size: 52.991 Min tunnel size: 56.717 Min vertical oil clearance: 0.031 Technical data (in) Max overall length: 0.8169 Max shaft size: 2.0866 Max tunnel size: 2.2337 Max vertical oil clearance: 0.0029 Max wall at crown: 0.0726 Min shaft size: 2.0863 Min tunnel size: 2.2329 Min vertical oil clearance: 0.0012 Engine code AR06476 / AR33601 / AR67203 / AR67501 / AR67502 / 146 B.000 / 146 B3.000 / 146 D7.000 / 149 B