cylindrical roller bearing 1.material:gcr-15 2.quality standard:ISO9001:2000 3.service:OEM 4.pomote delivery time cylindrical roller bearing1.material:gcr-152.quality standard:ISO9001:20003.service:OEM4.pomote delivery time Cylindrical roller bearings, single row, NJ design Product information Tolerances , see also text Radial internal clearance, cylindrical bore , tapered bore, unsealed , see ...