... Brass cage,nylon cage,steel cage4. Quality level:Reach the same level as Japanes and European bearings5. Delivery ... time:usually 25-35days after confirming P/O6. Feature:low voice,high ... . Application:home appliances.low noise and high speed electric motors,auotomotive components,pups,machinery ... 280 K,/W33,K/W33 High Quality Cylindrical Roller Bearing