... 15 years exprience 4.supply all types: ZZ, 2RS, OPEN Deep Grove Ball BearingModel No.: 160011.Seals Types: open, zz, 2rs, z, rs2 ... .Production Ability: 5,000,000 PCS/ Month12.Radial Load: deep groove ball bearings can support axial loads in both directions as well ... both sides Z --------metal seal on one sideOpen type 16001 Deep Grove Ball Bearing