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• 1787  10PCS 6701RS 12x18x4 mm ABEC-5 Hobby Electric RC Car Truck 6701 ZZ RS 2RS Ball 6701-2RS Blue Sealed Deep Groove Ball BearingsAbout this item6701 Bearings (I.D.=12mm, O.D.=18mm, Thickness=4mm)6701zz 6701-2RS bearings are sealed on BOTH SIDES to keep lubricant inMade from Chromium Steel (GCr15), durability and resistance to beneath heavy loadsProduct DescriptionNOTE：Please discuss with the picture and choose correct variety of bearings before your order (Sealed or Shield on BOTH or SINGLE facet of the bearing). Suffix on the bearing just for differentiating between Sealed and Shield kind of bearing. It would not impression the use of our product.Description:Single-row, pre-lubricated, normal accuracy.Deep Groove Ball Bearings are one of the most widely used rolling bearings.With small friction and high-limit speed, Ball Bearings are cost-effective and require little maintenance.Suitable for all kinds of commercial equipment, micro motor, small rotary motor, office package and so on.Selecting Guide:Shields (Designation Suffix Z/ZZ) - High speed. Protect from filth and debris.Sealed (Designation Suffix RS/2RS) - Made of sheet steel strengthened nitrile butadiene rubber (oil- and liquid-resistant). Lower limit speed than Shield Bearings.My friend, please appearance earlier than you purchase itif the demand is very large, you may contact the seller, the worth could be favorable.ABEC-1:The length accuracy is lower than 0.05mm,. It is acceptable for low speed and occasional requirements. Such as: low pace transmission equipment, casters, children's cars, toy automobiles and so on.ABEC-3:The size accuracy is lower than 0.01mm, the hand feels smooth, the speed is lower than 6000rpm, the noise is low, and the provider life is long. It is acceptable for motor, toy model, automobile, electrical tool, pneumatic tool, telecommunication equipment, fitness equipment, sports equipment and so on.ABEC-5:The size accuracy is lower than 0.005mm, the hand feels smooth, the speed is greater than 6000rpm, the noise is low, and the carrier existence is long. It is suitable for top speed motor, high pace model, device and instrument, precision equipment, high grade toys and so on.

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