The ABEC scale is an industry accepted standard for the tolerances of a ball bearing. The ABEC scale is designed to provide bearing manufacturers dimensional specifications that meet the standards of precision bearings in a specified class.

在abec体系下的轴承一般叫做精密轴承，编号从1到9，编号越高，轴承制造用的精度等级越高。（大号=更窄的公差带范围=更贵的价格）。

The ABEC rating system uses odd numbers—1, 3, 5, 7, 9—as classification ratings. The five distinct classifications are arranged in ascending order of tolerance. A higher rating signifies tighter tolerances higher precision, efficiency, and speed capabilities for the bearing.

Applications should only require ABEC 1 or ABEC 3 ball bearings. When highly precise position is required, ABEC 5 or ABEC 7 ball bearings should be specified. The ABEC scale is an industry accepted standard for the tolerances of a ball bearing.

The ABEC rating scale is the accepted standard for tolerances of a ball bearing. The scale displays five levels from widest to tightest tolerances: 1, 3, 5, 7, and 9. The higher the ABEC class the better the precision, efficiency, and speed capabilities of the bearing.

abec是轴承的一个精密度体系，编号由1到9，数值越大表示轴承制造的密度等级越高、轴承中间隙越小，轴承的性能也更好。 ILQ是由twincam（轴承品牌）所创立的分级标准 ，主要用于轮滑轴承。

abec标准是为精密轴承在生产制造时使用的公差分出不同等级而设计一套标准。 这个标准是由美国轴承制造协会(ABMA)下环形轴承工程协会/委员会（英文缩写是ABEC）来制定的。

abec-9和abec-7哪个好1、这是轴承的等级分类，数越大越顺滑，理论上说abec等级越高越好，但国内的东西有时不够达标，有时所谓的“-7”可能只达到-5的水平（个人观点，仅供参考）。

2025年1月9日 · ABEC 9 is the highest precision grade and is relatively rare in most common applications. It is designed for the most demanding and ultra-precision tasks. In advanced scientific research equipment, such as particle accelerators or high-precision optical instruments, ABEC 9 bearings are used to ensure the utmost stability and accuracy.

abec标尺是滚珠轴承公差的行业公认标准。它是由美国轴承制造商协会（abma）的环形轴承工程委员会（abec）开发的。从最大公差到最小公差有五类：1、3、5、7和9。更高的abec类提供了更好的精度、效率和更高的速度能力，但不一定会使组件旋转得更快。