Split bearing cover and base separable, major radial load, suitable for cylindrical and tapered holes of spherical roller bearings and self-aligning ball bearing. Such bearings are mainly used in metallurgy, mining, conveying systems, environmental protection equipment, and so on. Various series of the main difference is the load borne by different, seal forms (felted wool, double lip seal, u-shaped seals, labyrinth ring, and so on). It has good thermal conductivity, easy installation and removal, and greatly improved the effectiveness of seals.