Installation and disassembly of pillow blocks and matters needing attention

Pillow block bearing consists of spherical ball bearing with seal on both sides and a cast (or steel plate stamping) bearing seat. From the point of view, the structure of the Pillow block bearing is compact, but convenient loading and unloading, sealing is perfect, often used in mining, metallurgy, agriculture, chemical industry, textile, printing and dyeing, conveying machinery, etc. The installation and disassembly of outer spherical bearings with seats and matters for attention are mainly shared as follows.

Installation steps and precautions of the Pillow block bearing:

1. Before installing the bearing on the shaft, the fixing pin of the bearing jacket must be removed first, and the surface of the journal should be polished and clean, and the journal should be coated with oil for rust prevention and lubrication (allowing the bearing to rotate slightly on the shaft).

2. Apply lubricating oil to the mating surface of the bearing seat and bearing, and load the bearing into the bearing seat. Then the assembled bearing and bearing seat together on the shaft. Push to the required position for installation.

3. The bolts fixing the bearing seat should not be tightened first, and the bearing jacket should be able to rotate in the bearing seat. Also install the other end of the bearing and seat on the same shaft, rotate the shaft for a few turns, so that the bearing itself automatically finds the right position. Then fasten the bearing seat bolt.

4, install eccentric sleeve. First, put the eccentric sleeve on the eccentric step of the inner sleeve of the bearing, and tighten it by hand along the rotation direction of the shaft. Then insert the small iron bar into or against the countersunk hole on the eccentric sleeve. The small iron bar is struck with a hand hammer in the direction of rotation along the axis. Make the eccentric sleeve firmly installed, and finally lock the hex screw on the eccentric sleeve.

Removal steps and precautions of the Pillow block bearing:

1. Loosen the locking screw on the eccentric sleeve of the bearing with the hex wrench first, and then insert a small iron rod into the countersunk hole on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the rotation direction of the shaft.

2. Loosen the bolts fixing the bearing seat. Remove the bearing from the shaft along with the bearing seat. Note before removing the bearing seat at one end of the shaft. The bearing seat bolt at the other end of the shaft should be loosened so as not to damage the two ends of the bearing due to mutual stiffness.