50mm pillow block bearing

50mm pillow block bearing is composed of inner and outer rings, stop pins, steel balls, cages, sealing rings, retaining rings and fastening devices (screws, eccentric sleeves, and adapter sleeves) on the inner ring.
The spherical bearing seat is composed of the seat body and the oil injection mechanism (the non-oiled bearing seat has no oil injection mechanism).

The rings and steel balls of the outer spherical bearing are generally made of GCr 15 bearing steel to withstand large radial loads. The outer ring of the outer spherical bearing is spherical, and the outer diameter generally adopts a “one” tolerance, which is consistent with the bearing seat. Fitting tolerance – H7 is generally used, but J7 and K7 are also used according to different occasions. There are grooves for sealing rings and retaining rings on both sides. Riveting a stop pin on the outer ring, the hole of the stop pin is a non-through hole, and there are two Each oil injection hole is a through hole. The inner ring of the outer spherical bearing is longer, and the diameter of the inner hole has a “+” tolerance, which is a sliding fit with the shaft, and a fastening device with the shaft is attached.

If the bearing assembly is on the same side as the stop pin, but on the opposite side of the oil injection hole, it is commonly known as a positive sleeve.

If the tightening device and the stop pin are on different sides, but on the same side as the oil injection hole, it is commonly known as a reverse sleeve. The 50mm pillow block bearing adopts a double-layer sealing device, and the inner layer adopts a wear-resistant and oil-resistant rubber sealing ring with a skeleton, which is embedded in the outer ring of the bearing. In the grooves on both sides, a closed oil storage chamber is formed between the inner and outer rings of the bearing; the outer side of the sealing ring has a dust-proof retaining ring pressed on the inner ring of the bearing, which can achieve better dust-proof and Lubrication effect. Only three structures are selected in the Chinese standard for the fastening device of the outer spherical bearing. The outer spherical bearing with the top wire is fixed by two top wires with an angle of 120° between the axes of the inner ring. It is generally used in When the pure radial and impact loads are not large, the ability to bear axial loads is poor.