With the development of aeromotor technology, more strict speed performance of ball bearing is required.
随着航空发动机技术的发展，对滚珠轴承的速度特性要求也越来越高。
Universal set of technology, make precision machine tool spindle use Angle contact ball bearing realized either way matching use.
万能组配技术，使精密机床主轴用角接触球轴承实现了任意方式的配对使用。
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