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: 5M1913H Bearing size: .25 Bearing half type: Identical halves Bearing material: F780 Technical data (mm) Max overall length: 20 Max shaft size: 55 Max tunnel size: 60.02 Max vertical oil clearance: 0.072 Max wall at crown: 2.504 Min shaft size: 54.976 Min tunnel size: 60 Min vertical oil clearance: 0.012 Technical data (in) Max overall length: 0.7874 Max shaft size: 2.1654 Max tunnel size: 2.363 Max vertical oil clearance: 0.0028 Max wall at crown: 0.0986 Min shaft size: 2.1644 Min tunnel size: 2.3622 Min vertical oil clearance: 0.0005 Engine code F20C1 / F20C2 / F22C1 Application Honda F20C1 1997cc Inline4 DOHC 4v Honda F20C2 1997cc Inline4 DOHC 4v