... 3.Small, medium,large size 4.OEM 1 Cylindrical roller thrust bearings: Series: 811,812,893,894,874,WS811/812,GS811/812 ... ~1900r/minbasic load rating: 863~1290knApplications : home appliances.low noise and high speed electric motors,auotomotive components,pups,machinery,Bicycle inspection ...