Description Clevite Race HX Main Bearings -.025mm B16A2 B18A1 B18B1 B17A1 B18C1 B18C5 B20B B20Z Honda Clevite H-Series bearings were developed primarily for NASCAR racing, but are well suited to other types of competition engines. They’re especially good for engines that run at medium-to-high revs. They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity. H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance, and are made without flash plating for better seating. If you are not sure which type of performance bearing to start with, the H series bearing will be your best choice. Specifications Component No. Positions 1-2-3-4-5 1-2-3-4-5 Material TM-77 TM-77 Min. Std. Shaft Diameter 2.1644IN 54.9758MM 2.1644IN 54.9758MM Max. Std. Shaft Diameter 2.1654IN 55.0012MM 2.1654IN 55.0012MM Min. Vert. Oil Clearance 0.0012IN 0.0305MM 0.0012IN 0.0305MM Max. Vert. Oil Clearance 0.0037IN 0.0940MM 0.0037IN 0.0940MM Max. Wall 0.0776IN 1.9710MM 0.0776IN 1.9710MM Min. Brg. O.D. or Housing Bore 2.3228IN 58.9991MM 2.3228IN 58.9991MM Max. Brg. O.D. or Housing Bore 2.3237IN 59.0220MM 2.3237IN 59.0220MM Max. Length 0.7870IN 19.9898MM 0.7870IN 19.9898MM
