My friend, please appearance before you purchase itif the demand is terribly large, you might touch the seller, the worth could be favorable.Level description:ABEC-1=NORMAL CLASS=P0;ABEC-3=CLASS 6=P6;ABEC-5=CLASS 5=P5;ABEC-1:The length accuracy is lower than 0.05mm,. It is appropriate for low pace and coffee requirements. Such as: low pace transmission equipment, casters, children's cars, toy vehicles and so on.ABEC-3:The length accuracy is less than 0.01mm, the hand feels smooth, the speed is lower than 6000rpm, the noise is low, and the service existence is long. It is acceptable for motor, toy model, automobile, electric tool, pneumatic tool, telecommunication equipment, fitness equipment, sports equipment and so on.ABEC-5:The length accuracy is lower than 0.005mm, the hand feels smooth, the speed is more than 6000rpm, the noise is low, and the provider lifestyles is long. It is acceptable for high speed motor, excessive pace model, instrument and instrument, precision equipment, high grade toys and so on.Material: fantastic bearing metal is utilized in the bearings of our company.Our company produces excessive speed(The velocity is over 30000). ABEC-1,ABEC-3,ABEC-5,ABEC-7,ABEC-9,ABEC-11,Please touch the vendor if you want it. Description6000ZZ (10x26x8)mm Shielded Miniature Deep Groove Radial Ball Bearings.6000zz bearing is a kind of multi-purpose ball bearing. This is broadly used in precision instruments, 3-D Printer, CNC machines, micro motor, remote control model, and so forth industries.General Specification:Model Number: 6000ZZ.Bore Diameter: Ø10mm.Outer Diameter: Ø26mm.Width: 8mm.Construction: Single row deep groove ball bearings.Material (rings & balls): Chrome Steel.Material (cage): Pressed Steel.Shielding: Double Metal Shield.Related Information:6000ZZ Specification