Miniature bearings

Miniature bearing refers to  all kinds of bearings,whose outside diameter less than 9mm of  metric series and outside diameter less than 9.525mm of inch series. The main materials are steel, bearing steel, stainless steel, plastic, ceramic, wherein the inner diameter of the smallest can do 0.6mm, with more 1mm inner diameter.

  In the miniature bearing of ultra small aperture, types of miniature deep groove ball bearings are metric 68 series, 69 series, 60 series, a total of 6 inch R series.On this basis,angular contact ball bearing also can be divided into with ZZ steel dust cover bearing series, with RS rubber sealing ring for miniature bearing series, teflon bearing seal ring series and with flange rib series and so on.