WRT is one of professional four point contact ball bearings factory | manufacturer in China

Four point contact ball bearings is separable bearing, owning two-piece inner ring or outer ring. its contact angle is 35 °。 There are four points contact between steel ball and rings. Four point contact ball bearings can endure radial load, axial load and the combined load (axial load and radial load). This type of bearing can limit the displacement of two radial directions between the shaft and housing. We classify it by its structure .they are QJ and QJF this two kinds. Four point contact ball bearings enjoy big load capability and high rotate speed. They can support the bidirectional load. They own the both character which single row enjoyed and double row enjoyed. Four points contact ball bearing is suitable to mill machines, spindle shaft for machine tools. And printing machines etc