The "AP" Bearing also contains a spacer, seal, seal wear rings, axle end cap, cap screws, locking plate and backing ring. AP轴承还集成了隔圈、密封、密封耐磨环、轴端盖、端盖螺钉、锁定板以及后挡环等部件。
Two compression cylinders are also installed in the seal housing, which are positioned between two opposite end lateral plates and separated by a separator plate. 在密封壳体内还装有两个压缩缸,位于两个相对的端侧板之间并由隔板分隔开。