Outer spherical bearing disassembly skills

The outer spherical bearing fixes the inner ring of the bearing to the shaft through an eccentric sleeve, and the hexagon socket screw on the eccentric sleeve acts as a fastening. In the maintenance, many operators will not disassemble such bearings, so it is necessary to introduce the technical points and precautions for disassembling the outer spherical bearings:

First, disassembly

1. First loosen the locking screw on the eccentric sleeve of the bearing with an Allen key, then insert the small iron rod into the counterbore on the eccentric sleeve of the top cover, and loosen the eccentric sleeve against the direction of rotation of the shaft.

2. Loosen the bolts that secure the bearing housing. Remove the bearing from the shaft together with the housing. Note before removing the bearing housing at one end of the shaft. The bearing block bolts at the other end of the shaft should be loosened to prevent the bearings at both ends from being damaged by each other.

Second, the installation

1. Before installing the bearing on the shaft, the bearing pin of the bearing sleeve must be unplugged, and the surface of the journal should be smoothed and cleaned, and the oil is rust-proof and lubricated at the journal (allowing the bearing to rotate slightly on the shaft).

2. Apply lubricant to the bearing seat and bearing mating surface, and install the bearing into the bearing housing. Then the assembled bearing is placed on the shaft together with the bearing housing. Push to the desired location for installation.

3. The bolts of the fixed bearing housing should not be tightened first, so that the bearing housing can rotate in the bearing housing. Also install the other end bearing and seat on the same shaft, turn the shaft a few turns, and let the bearing itself automatically find the position. Then fasten the bearing block bolts.

4. Install the eccentric sleeve. First, eccentric sleeve is placed on the eccentric step of the inner sleeve of the bearing, and the shaft is tightened by hand in the direction of rotation. Then insert or hold the small iron rod against the counterbore on the eccentric sleeve. 1. Use a hammer to strike a small iron rod in the direction of rotation of the shaft. Install the eccentric sleeve securely and finally lock the socket head cap screws on the eccentric sleeve.

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Detailed structure of imported SKF bearing housing

About SKF rolling bearings and bearing housing knowledge, everyone is familiar with SKF bearings, SKF bearings accounted for 20% of the world's total output of similar products. The standard products offered by SKF have more than 20,000 types of bearings. In addition to SKF rolling bearings, SKF Group also manufactures linear bearings, plain bearings, bearing housings, ball and roller screws, textile machinery components, retaining rings, machine tools and various precision mechanical components. With extensive experience in these areas, he has the knowledge and expertise to develop, manufacture and apply a wide range of advanced engineering products. Here is a brief introduction to SKF rolling bearings and housings:

Housing type: SNL housing, shaft diameter 20-160mm

Options: Double lip seal (TG)

Please read the full instructions of the instructions before starting work:

The installation and disassembly of 1.skf rolling bearings are sometimes involved; the movement of heavy objects, the use of tools and other equipment, or the use of high pressure oil. To avoid accidents, human injury or property damage, please follow the instructions carefully.

2. Make sure the environment is clean.

3. Check the size and shape tolerances of the journal.

4. Check that the surface roughness Ra of the support surface is not more than 12.5 μm. The flatness tolerance should be IT7. For applications with lower requirements, IT8 is available.

If the SKF bearings are mounted on the adapter sleeve, determine the direction of the housing. The nozzle tip of the housing cap should always be on the other side of the adapter nut. Care must be taken in the direction of the entire housing as the top cover and base must be installed in the original orientation.

Determine the direction of the bearing housing on the support surface. Install the anchor bolts but do not tighten them.

Insert half of the split lip seal into the seal groove on both sides of the housing base. The space between the lips of the seal is filled with grease. If the housing is used for the shaft end, insert the end cap on one side instead of the seal.

Install SKF bearings on the shaft; mount directly on the stepped shaft or use an adapter sleeve. Fill the bearing with grease. Add the remaining portion of the recommended grease fill to the sides of the housing base.

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