|Payment Type:||L/C,T/T,D/P,Paypal,Money Gram,Western Union|
|Terms of Trade:||FOB,CFR,CIF,EXW,CPT,CIP|
|Min. Order:||1 Piece/Pieces|
|Delivery Time:||1 Days|
|Place of Origin:||CHINA|
|Supply Ability:||1000 Pc per day|
Model No.: BA230-7
High-precision bearings refer to bearings with high rotation accuracy, high accuracy of external dimensions and low surface roughness. In China’s standards, bearings of P4 and higher than P4, for example, P2 bearings are high-precision bearings, which are roughly the same as the American standard ABEC 7 is equivalent to ABEC 9 and equivalent to international standards ISO P4 and P2. International standards are recognized and adopted by many countries, such as Japan, Germany and France.
Through precision machining, various types of rolling bearings can meet high precision requirements, but the most used high-precision bearings in applications are Angular Contact Ball Bearings, and the spindles of metal cutting machine tools with high precision and high rigidity requirements , There are also many double-row short Cylindrical Roller Bearings, followed by Tapered Roller Bearings.
At present, due to the development of bearing processing technology, the international level of the actual finished product error of precision bearings at all levels is mostly below 1/2 of the standard value. For example, the roundness of Ball Bearings for machine tools is 0.3μm, while the one used in computers is 0.25μm. .