Precision Bearings or High-precision Bearings are not a specific type of bearing.
It is a conceptual expression used to describe bearing products that meet stricter tolerance standards.
At present, there are two mainstream bearing precision standards in the world, namely the International Standards Organization (ISO) and the American Annular Bearing Engineering Committee (ABEC).
The former classifies bearing accuracy into Class Normal, Class 6, Class 5, Class 4, and Class 2. The smaller the number, the higher the accuracy. The latter classifies bearing accuracy into ABEC 1, ABEC 3, ABEC 5, ABEC 7, and ABEC 9. The larger the number, the higher the accuracy.
In addition to ISO and ABEC, the current mainstream bearing standards include the German Standards Association (DIN, Deutsches Institut fur Normung). This certification standard is Germany's national standardization organization and is currently one of the main standards in Europe and the world.
An Tong Trading is the agent for many international bearing manufacturers and provides a variety of precision bearings to meet your application needs. You are welcome to contact us at any timeto obtain more precision bearing product information!