Precision Rating:P0 P6 P2 P5 P4 Material:chrome steel,carbon steel,stainless steel Cage:steel,brass,nylon Type:open type,sealed type Vibration Level:V1,V2,V3,V4 Feature:low noise,high speed,long life .durable Clearance:C0,C1,C2,C3,C4 Certificate:ISO9001:2008 Service:OEM service Lead time:short and in time Sample:Free sample available Show More