The outer spherical bearing is a bearing block that connects the outer spherical bearing to the bearing. Most outer spherical bearings have a spherical outer diameter and are mounted together with bearings with spherical inner holes. They have many structural shapes, have good universality and interchangeability.

At the same time, this type of bearing also has a certain degree of self-aligning design, easy to install, with double seal design, which can operate in harsh conditions. Bearings are usually made of casting or stamping. Commonly used casting bearings include vertical seat (P), narrow vertical seat (PA), high center vertical seat (PH), square seat (F), convex square seat (FS), convex round seat (FC), rhombus seat (FL), ring seat (C), slider (T), suspension seat (HA), adjustable rhombus seat (FA) and suspension bearing base (FB); Commonly used stamping bearings include round stamping seats (PF), rhombus stamping seats (PFL), triangular stamping seats (PFD), vertical stamping seats (PP) and so on.