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Decode The Miniature Bearing

Release time : 2015-06-10 07:03:17
As we all know, Miniature Bearing is a very important component that suitable for different kinds of small household electrical appliances, motor, instrument, laser engraving, clocks, dental drill, toy model and so on. Due to the huge market demand, more and more bearing manufacturers established, like our company Shanghai Lily Bearing Manufacturing Co., Ltd. At the same time, there are also derived a lot of different bearing models and marks makes people confusion.
To help everybody quickly identify and choose the right bearings, I'd like to introduce some basic marks or suffixes of deep groove ball bearings as follows. I hope this is helpful for some beginners.
Inch single row deep groove ball bearings: R
Inch flanged single row deep groove ball bearings: FR
Inch single row deep groove ball bearings with extended inner ring: RW
Inch flanged single row deep groove ball bearings with extended inner ring: FRW
Metric single row deep groove ball bearings: None
Metric flanged single row deep groove ball bearings: F
Specified size of the metric single row deep groove ball bearings: MR
Specified size of the metric flanged single row deep groove ball bearings: MF
Metal shields on both sides: ZZ
Rubber seals on both sides: 2RS
Teflon seals on both sides: TTS
Ribbon cage: J
Crown Cage: W
Chrome steel: AISL 52100 or SUJ2 or 100Cr6
Stainless steel: SUS440C or AISI440C or 9Cr18