Introduction to Miniature Bearings
Miniature bearings in the metric series with an outer diameter less than 9mm, and in the Inch series with an outer diameter less than 9.525mm. The main materials include carbon steel, chrome steel, stainless steel, plastic, ceramics, etc. The minimum I.D. can be 0.6mm, and generally the I.D. is 1mm.
In miniature bearings with ultra-small bore sizes, the miniature deep groove ball bearings include metric 68 series, 69 series, 60 series, etc., and inch R series. Here can also be divided into ZZ steel plate dust cover series, RS Rubber sealing ring series, flange series, etc.
Miniature bearings are suitable for various types of industrial equipment, small motors and other fields with high speed and low noise.
Such as: office equipment, micro motors, instruments, laser engraving, small clocks, dental drills, toy models, money counting machines, etc.
In Fitrun, miniature ball bearing is usually referred to ball bearing with bore diameter ranging from 1mm to 10mm. We manufacture full metric standard dimension of miniature ball bearings and most of them with huge stock for fast shipping. The precision tolerance of metric miniature ball bearings is from ABEC-1 to ABEC-9, the higher precision tolerance the higher cost.
If you are looking for professional miniature ball bearing manufacturers in China, Fitrun Bearing is a best choice for you.