BYSUISAN 608zz 16 Pack Skateboard Bearings for Roller Inline Skate roller blade Scooter Wheel 3d print rollerblade Double Shielded Chrome Steel 8x22x7mm Miniature Ball Bearing
608ZZ Material: Supreme chrome steel and Double shields The bearing is made of high quality supreme chrome steel AISI 52100 for durability and the lifespan is longer than carbon steel, saving you maintenance costs and avoiding frequent replacement. it is shielded to keep lubricant in and contaminants out. it has a revolutions per minute (Rpm/min) limit of 32,000 with grease lubrication. Quiet and smooth. Metal seals fit well. Grease as shipped isn't too heavy, doesn't impede spin with low loads. They'll spin even better once you strip that grease and hit them with Speed Cream. Wide For Moderate Load Application These are indeed good-midrange bearings. This is among the most common size wheel roller bearing used in ordinary moderate load project application, so far. The dimensions suitable for use in such applications as skateboards, roller inline skates,roller blades, scooters, most kinds of industrial equipment (bandsaw cnc router guide ordinary grinder gearing), 3d printing fliament guide spool roller, 3D printed project component, 3d printer spool holders, fidget spinner fan motor（Window air conditioning units frigidaire wall mounted air conditioner unit floor fan motor blower ), small micro motor rotary motor treadmill motor,small robots, shopping cart trolley wheel, luggage roller bag wheel walker, wheelchair office equipment (drawer slides ) and so on. Read more Choose the right bearing for your project If your equipment is expensive or requires high precision, It is recommended to use higher grade bearings such as ABEC7 (P4) or ABEC9 (P2) according to the actual situation. For example, in the ultra precision instruments with rotation accuracy less than 5um or high rotation speed, such as precision coordinate boring machine, gear system of precision grinder, precision instruments, meters and high-speed camera and other precision systems(vacuum cleaner) Bearings are well-examined before shipment Strict Control on Productive Process The factory has a more advanced laboratory equipment, complete detection means products. and a complete set of quality system, and guarantees the effective quality by our abundant technical strength, excellent the manufacture equipments and strict inspection methods.
Product Features
- Widely Used In Light Duty Applications or ReplacementSuitable for skateboards, roller inline skates, roller blades, scooters, Bandsaw shark wheels, 3d printing filament spool holders roller guides, fidget spinner,repair fan motor small micro rotary trolling motor, wall mounted air conditioner unit floor fan blower, air purifier motor, treadmill shopvac motor, radiator fan, shopping cart, medical walker wheel, luggage wheel wheelchair CNC router sander, power tool ect.
- Pre-lubricated Neat and tidyLubricated with a few grease at manufacture to protect them during shipping, but look clean. Wash them with dish soap water, when you still feel somewhat gummy or sticky. Bearings come with a few sticky lube that may hinders their ability to roll or spin. If conditions permit, clean and wipe off outside grease with paper towels and WD - 40 (degreaser or cleaning agent), make bearings spin more freely with a quick cleaning and re lubrication.
- Optimal Material Durable Unique PackagingTo ensure reliability andmech longer ages, bearings are made of High-Quality Supreme chrome steel AISI 52100 which is more durable and better than carbon steell, much durable not only strength but also with dual shields for optimum lubrication and reduction of contaminants. Bearings are stacked in specially rectangular transparent box, which are handy for storing and organizing and counting until you need them,take out bearings much easier.
- Advanced Techniques100% - Dimensional tolerance inspection for optimum assembly. Bore Diameter: 8mm; Outside Diameter: 22mm; Width: 7mm. Exterior design: Double metal seals Precision grade: ABEC-3 P6 Vibration and noise Grade:Z1. Grease may make you think them would not spin fast with a touch stiff when holding in hands-but will free-up during prolonged actual use. Most bearings needed "break-in" to spin well.
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