On the basis of kinematic analysis of the tripod universal joint, this paper analyses the motion errors of this system, which related to the manufacturing error, installation error, bearing clearance, and so on.

• 摘要在三叉杆式万向联轴器的运动分析的基础上，充分考虑到机构制造和安装的不精确性，运动副轴承的间隙，作用于连杆上力及温度变化引起的连杆变形等因素，进行了三叉杆式万向联轴器运动误差分析。