Technical Points and Precautions for Dismantling and Installing Spherical Plain Bearings!

Spherical plain bearings feature an outer ring with a spherical outer surface and are self-aligning bearings equipped with sealing caps on both sides. During maintenance, many operators lack proficiency in handling these bearings. Therefore, Shanghai SKF Spherical Plain Bearing Manufacturer deems it necessary to outline the technical points and precautions for their disassembly and installation:

I. Removal

1. First, use an Allen key to loosen the locking screw on the bearing's eccentric sleeve. Then insert a small iron rod into the countersunk hole on the cap's eccentric sleeve and tap the sleeve counter to the shaft's rotation direction to loosen it.

2. Loosen the bolts securing the bearing housing. Remove the bearing assembly (bearing and housing) from the shaft. Note: Before removing the housing at one end of the shaft, loosen the bolts on the housing at the opposite end to prevent mutual locking and potential damage to both bearings.

II. Installation

1. Before mounting the bearing onto the shaft, remove the retaining pin from the bearing outer ring. Simultaneously, grind the shaft journal surface smooth and clean, then apply oil to the journal for rust prevention and lubrication.

2. Apply lubricating oil to the mating surfaces of the bearing housing and bearing. Insert the bearing into the housing. Then, slide the assembled bearing and housing onto the shaft, pushing it to the required position for installation.

3. Do not fully tighten the bearing housing bolts initially, allowing the outer ring to rotate freely within the housing. Similarly, fit the bearing and housing at the opposite end of the same shaft. Rotate the shaft several times to allow the bearings to self-align before fully tightening the housing bolts.

4. Fit the eccentric sleeve. First, position the sleeve over the eccentric shoulder of the bearing inner ring and hand-tighten it in the direction of shaft rotation. Insert a small iron rod into the countersunk hole on the sleeve or press it against the hole. Using a hammer, tap the rod in the direction of shaft rotation to secure the sleeve firmly. Finally, lock the hexagon socket screw on the sleeve.