很少有轴承应用具有机床应用中所用轴承的严格性能要求。大多数机床应用都需要精度、精度、刚度和高速。绝大多数机床应用在主轴的工作端和驱动端都使用双联或多组角接触轴承，以满足应用的多样性和严格要求。轴承设计人员可以使用有限数量的变量来操纵轴承的工作特性，以满足各种具体应用的不同要求。对这些设计参数进行了研究，并给出了优化设计，作为本文的结论。

FEW BEARING APPLICATIONS HAVE THE EXACTING PERFORMANCE REQUIREMENTS OF THOSE BEARINGS USED IN MACHINE TOOL APPLICATIONS. PRECISION, ACCURACY, RIGIDITY, AND HIGH SPEEDS ARE REQUIRED FOR MOST MACHINE TOOL APPLICATIONS. THE VAST MAJORITY OF MACHINE TOOL APPLICATIONS USE A DUPLEX OR MULTIPLE SET OF ANGULAR CONTACT BEARINGS AT BOTH THE WORK AND DRIVE ENDS OF THE SPINDLE TO MEET THE DIVERSE AND EXACTING REQUIREMENTS OF THE APPLICATIONS. BEARING DESIGNERS HAVE AT THEIR DISPOSAL A LIMITED NUMBER OF VARIABLES WITH WHICH TO MANIPULATE BEARING OPERATING CHARACTERISTICS TO MEET WIDELY VARYING REQUIREMENTS OF EACH SPECIFIC APPLICATION. THESE DESIGN PARAMETERS ARE INVESTIGATED WITH AN OPTIMAL DESIGN PRESENTED AS A CONCLUSION TO THE PAPER.