Code and meaning of bearing sealing, dust prevention and external shape change

2013-01-24

Code meaning Example
K Tapered hole bearing 1:12 (except spherical ball bearing) 1210K
K30 Tapered hole bearing 1:30 241 22K30
R The bearing outer ring has a stop edge (flange outer ring) 30307R
(Not applicable to radial ball bearings with inner diameter less than 10mm)
N There is a stop groove on the outer ring of the bearing  

 

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Two Grand Prix cars were selected as the top ten best-selling models of Chinese motorcycles

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Two Grand Prix cars were selected as the top ten best-selling models of Chinese motorcycles

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From January to April 2012, Chongqing's motorcycle production and sales were better than the national average

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