Structure Angular Contact Type Ball Brand Name FAG, NACHI, NSK, NTN, SKF Bore Size 90 mm Outside Diameter 190 mm Model Number 3318C3 Precision Rating P0, P6, P4, P5 Seals Type open zz rz rs 2rz 2rs Number of Row Double Row Place of Origin Tianjin, China (Mainland) Vibration level V4 V3 V2 V1 Radial play C0 C2 C3 C4 Tolerance code: ABEC-1 ABEC-3 ABEC-5 ABEC-7 Packing: 33cm*26cm*20cm