To the horizontal large main arbor, it is key to solve the inconvenience of fit, adjust and maintain evocable by the weight of shaft.

• 对于卧式布置的大型主轴,结构设计上要在保证主轴达到精度要求的条件下,着重解决因自重而引起的安装、整、修不便的问题,若重视不够,将使机床不能正常工作。