1, the type of difference
With the advent of the internationalization tide, the domestic bearing code with imported bearing code world gradually, the latest issue of the national standard, according to the domestic code consistent with the international ISO standard.
Mark on the bearing, such as domestic famous general is luoyang bearing shaft code is (LUO) and Harbin bearing is (HA) this is basic, each bearing the phonetic symbol is digital code bearing models on behalf of the origin of a product, if you should know the mechanical industry was born.
2, other aspects
Compared with domestic bearing, the general material is better than the domestic import bearing, heat treatment process is advanced, high precision manufacturing, manufacturing and assembly process is more reasonable, and has long service life, of course, the price is also higher. And imported bearing generally more authentic, the most important thing is... Bearings are made of foreign imports. Ha ha, that you can understand.
For life, although the imported bearing's service life is longer than domestic, but if the ordinary machine under the condition of the precision required degree is not high domestic can completely. Now the domestic HRB, ZWZ big manufacturers such as bearing quality is very good. The price is appropriate, can also be used to live. But at the time of required precision or imported good.