How to properly maintain SKF bearings

        1. Cleaning When removing the bearing, first take a look at the appearance with photography. Also, verify the amount of lubricant remaining and sample the lubricant before cleaning the bearings.

a. The cleaning of the bearing is carried out by rough washing and fine washing, and a metal mesh frame can be placed on the bottom of the used container.

b. When rough washing, remove the grease or adhesive with a brush or the like in the oil. At this time, if the bearing is rotated in the oil, be careful that the rolling surface will be damaged by foreign matter or the like.

c. When washing finely, slowly rotate the bearing in the oil and carry out it carefully. The cleaning agent generally used is a neutral non-aqueous diesel oil or kerosene, and a warm alkali liquid or the like is sometimes used as needed. Regardless of which cleaning agent is used, it is often filtered and kept clean. Immediately after cleaning, apply anti-rust oil or anti-rust grease to the bearing.

2, inspection and judgment

In order to judge whether the removed bearing can be reused, it is important to check its dimensional accuracy, rotation accuracy, internal clearance, mating surface, raceway surface, cage and seal. Regarding the inspection result, it can be judged by a person who is using a conventional bearing or a proficient bearing.

The criteria for judgment vary depending on mechanical properties and importance, inspection period, and the like. Bearings must not be reused if they are damaged and must be replaced.

1) Breakage and defects of bearing components.

2) Peeling of the rolling surface of the raceway surface.

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Detailed process roller bearings

1. cylindrical roller bearings in the course of the process
Forming rough deburring or annulus → → → Polishing Polishing raceway double end → solution → hot rolling surface → front coarse coarse coarse double surface → rear surface → rolling → final double-end fine grinding final rolling surface grinding → Super-finishing rolling surface → cleaning, boring → final inspection appearance, size grouping → oiling packaging.
2. Process history of tapered roller bearings
Blank forming → deburring or ring belt → soft grinding raceway surface → soft grinding double end face → heat solution → coarse grinding rolling surface → fine grinding rolling surface → grinding ball base surface → final grinding rolling surface → super finishing rolling surface → cleaning, boring → Final inspection appearance, size grouping → oiling packaging.
Can be made of two or more roller rolling surfaces crown-shaped generatrix, if the metric is less than convex 0.005mm, the individual can indirectly rolling surface super finishing step; if the metric is greater than the convex 0.005mm, the individual may be the last in the final rolling mill step grind surface convexity, then superfinished.
3. The needle craft course
Blank forming → deburring → heat solving → coarse, fine, final grinding rolling surface → super finishing rolling surface or sawdust polishing.
For the flat head and the cone needle roller, if the blank forming is difficult to guarantee the length dimension tolerance, the grinding double end process can be added in the grinding and rolling. If a convex shaped busbar rolling surface is required, it can be carried out indirectly in the superfinishing rolling surface or the calendering process.
4. Process history of asymmetric spherical roller
Blank forming → deburring or ring belt → soft grinding raceway surface → soft grinding double end face → heat solution → grinding aspheric end face → grinding ball end face → coarse, fine, final grinding rolling surface → polishing → cleaning, boring → final inspection appearance, size Group → oiled packaging.
The process of symmetrical spherical roller is:
Blank forming→deburring or ring belt→soft grinding raceway surface→soft grinding double end face→heat solution→rough grinding rolling surface→coarse, final grinding double end face→fine, final grinding rolling surface→polishing→cleaning, boring→final inspection appearance, Dimensions grouped → oiled packaging.
If the final rolling surface process can reach the surface roughness request, polishing may not be performed.

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