XV Type (with two inner semi-rings and an outer ring with a mounting hole)
The outer ring of XV series has a one-piece design with a mounting hole. The inner ring has two semi-rings. And there is a dustproof fixing metal ring between the inner and outer rings to protect the product from dust and ensure the integration of both inner and outer rings. It is convenient to mount them. The series are suitable for parts which require high rotation accuracy of outer rings.