... 2.High speed, less friction 3.Sample: Available 4.High Precision Roller Bearing, Taper Bearing, Tapered Roller Bearing:1.Less coefficient ... seriesInch:JL,JLMS,LS,LM,LMS,MS,HMS seriesMaterialGCr15CertificateISO9001:2001PrecisionP0, P5, P6Bore Size:20mm-190mmOutside diameter40mm-320mmClearanceC0,C1,C2,C3,C4 ...