Structure Spherical Type Roller Brand Name WZA Bore Size 55 mm Outside Diameter 100 mm Model Number 22211 Precision Rating p0,p6,p5,p4,p3,p2 Seals Type rr.,2rs Number of Row Single Row Place of Origin China (Mainland) vibration V1-V4 noise level Z1-Z4 Quality standard ISO9001:2000 Clearance C2,C3,C4,C5 precision level ABEC-1,ABEC-3,ABEC-5 cage steel cage, brass cage, nylon cage main market America, Europe, Africa, Asia Payment terms TT30% in advance, 70%paid against the copy of BL or 100%LC at sight