PILLOW BLOCK BEARINGS-SPHERICAL BEARINGS WITH SEATS

The outer diameter of the bearing and the inner diameter of the bearing are spherically matched, and there is an automatic self-aligning function between the two, which can compensate for the misalignment of the axes and the deformation of the installation bottom surface caused by installation errors.

As the internal structure of the outer spherical ball bearing is the same as that of the 6200 and 6300 series deep groove ball bearings, it can not only bear radial loads, but also bear certain axial loads. At the same time, the bearing has low working noise.

The bearing seat is an integral seat structure with excellent rigidity, which prevents the bearing from deformation during assembly. The bearing seat is durable under any working conditions.

The outer ring of the bearing is equipped with a unique stop pin (ball), which allows the bearing to align itself automatically and prevents the outer ring from rotating, thus extending the service life of the bearing.

Insert ball bearings with seats are usually used in harsh working environments such as mud, dust, humidity and high temperature. The grease inside the bearing will deteriorate in a short period of time. Therefore, it is necessary to re-lubricate the insert ball bearings with seats at appropriate time intervals and replace the deteriorated grease with fresh grease.Cast iron spherical ball bearings are equipped with grease nipples for relubrication, ensuring perfect performance and long service life in any working environment

There are four ways to lock the bearing on the shaft. The most common method is to lock the two set screws on the extended end of the inner ring. You can also use a locking sleeve, a locking sleeve or an eccentric sleeve. These four methods can easily lock the bearing on the shaft. (The structure of the top screw is the tooth end type (ST), W end type (SW), concave end type (S) and ball end type (SQ). Some top screw threads are coated with nylon paint to improve their anti-loosening performance.)

Both sides of the outer spherical ball bearing are equipped with heat-resistant and oil-proof rubber seals and steel plate dust cover combination seals. The dust cover is assembled on the outer diameter of the inner ring of the bearing and rotates with the inner ring. It can effectively prevent external foreign matter from entering the bearing and can resist external pressure to protect the bearing. This combination seal composed of a seal ring and a dust cover can prevent dirt, dust, and moisture from entering the bearing, and at the same time prevent the grease inside the bearing from leaking out. The bearing can maintain perfect working performance even in harsh working environments.

The inner ring groove and the surrounding parts that need to be hardened are normally quenched, and the inner ring extension end for the set screw is locally tempered at high temperature to maintain toughness and impact resistance. After local high temperature tempering around the inner ring screw hole, the bearing obtains better performance, which can prevent the screw from loosening during the operation of the bearing, and at the same time, the screw will not cause the inner ring to burst even if it is tightened. (After local annealing of the inner ring, it must be ensured that the inner ring groove is not affected and the hardness remains unchanged. After annealing, the hardness around the top screw hole should be below HRC50.