Chrome Steel Flange Deep Groove Ball Bearing 4x7x8.2x2.5mm F74ZZ

Miniature deep groove ball bearings refer to metric series with an outer diameter of less than 9mm; inch series, all kinds of bearings with an outer diameter of less than 9.525mm! The main materials are carbon steel, bearing steel, stainless steel, plastics, ceramics, etc. The smallest inner diameter can be 0.6mm, and the general inner diameter is 1mm. Product Features Among the miniature bearings with ultra-small aperture, the types of miniature deep groove ball bearings include metric 68 series, 69 series, 60 series, etc. There are 6 types of inch R series. On this basis, they can also be divided into ZZ steel plates. Dust cover bearing series, miniature bearing series with RS rubber seal ring, Teflon bearing seal ring series and flange flange series, etc. The main purpose is suitable for all kinds of industrial equipment, small rotary motors and other high-speed and low-noise fields, such as: office equipment, micro motors, instrumentation, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors , Stepper motors, video recorder drums, toy models, computer cooling fans, currency counters, fax machines and other related fields.