🛹 Afrowlle ABEC9 ABEC11 Skateboard Bearings: Ultimate Performance for Roller, Skateboard, Longboard, Motors, 3D Printer, Fidget Spinners Review

[Level Certification] ABEC-9, in line with the precision bearing standards of the American Bearing Manufacturers Association, has a higher speed and stronger pressure resistance. [Metal Seal Cover] The metal seal cover is tightly closed to protect the inside of the bearing. Compared with the rubber cover, the metal cover dissipate heat faster and can meet various high speed requirements. [Professional Materials] This 608 ZZ miniature ball bearing (8mmx22mmx7mm) is a single-row bearings for supporting radial loads. The inner and outer rings of the product are made of high-carbon chromium bearing steel that meets AISI 52100 standards, and the rolling elements are made of high-precision steel balls with small tolerances. [Quietness] The high-carbon chromium steel cage and metal seal cover effectively reduce the noise caused by rotation, make the rotation more smooth and stable, and maintain your perfect experience. [Wide Use] Deep groove type bearings have a very wide range of uses, such as roller skates, yo-yos, instruments, motors, household appliances, transportation vehicles, machinery, and gearboxes.Ten-piece deep groove type bearings can meet your needs for bearings anywhere.