The permissible tilting angle is given for each spherical plain bearing and rod end in the product tables. 每种球面滑动轴承和杆端装置的允许倾斜角在产品表中一一列明。
Spherical plain bearings and rod ends with the sliding contact surface combination of steel-on-steel and steel-on-bronze require maintenance. 采用钢与钢和钢与铜滑动接触面组合的球面滑动轴承和杆端关节轴承需要进行维护。
Because of the oilless self-lubrication characteristic in ceramic, the bearing may overcome lubrication problems in an ultra-high vacuum environment. 因陶瓷材料独具的无油自润滑特性，故在超高真空环境中，可克服普通轴承无法实现润滑的难题。
