... .1standard.Radial Clearance supplies spherical roller bearings with C2,C0,C3,C4and C5 clearances,which all conform to the GB4604 standard.C3clearance ... as the specific order quantityOur dominant products are 8 series of bearings(inner diameter:65mm-3500mm),Spherical Roller Bearings,Cylindrical Roller........ Angular Contact Ball Bearings