Miniature deep groove ball bearings refer to the metric series, the outer diameter is less than 9mm; the inch series, all types of bearings with an outer diameter less than 9.525mm, the main materials are carbon steel, bearing steel, stainless steel, plastic, ceramics, etc. 0.6mm, generally more than 1mm inner diameter.

In the ultra-small bore miniature bearings, the types of miniature deep groove ball bearings are metric 68 series, 69 series, 60 series, etc., there are 6 types of inch R series, on this basis, it can also be divided into ZZ steel plate dustproof Cover bearing series, miniature bearing series with RS rubber seal ring, bearing seal ring series, flange flange series and so on.

Applicable to all kinds of industrial equipment, small rotary motors and other high-speed low-noise fields, such as: office equipment, micro motors, instrumentation instruments, laser engraving, small clocks, soft drives, pressure rotors, dental drills, hard disk motors, step Into motors, video recorder drums, toy models, computer cooling fans, banknote counters, fax machines, and other related fields.