... East,Africa 4.long life,low noise 1. saeling form: OPEN,Z,ZZ,RS,2RS,2RZ2. bearing type:ball ... bearings3. Cage(Retainer):Brass cage,nylon cage,steel cage4. Quality level:Reach the same level as Japanes and European ... -35days after confirming P/O6. Feature:low voice,high speed,long life7. Application:home appliances.low noise and ... W33,K/W33NNU 10-280 K,/W33,K/W33 High Quality Cylindrical Roller Bearing