Features of bearings for machine tools
The quality of manufactured parts depends on the accuracy of metalworking on machine tools. It is for this reason that wholesale bearings of the required size are purchased by repair companies and owners of machine tools to restore their factory characteristics. The main thing is to choose the highest quality products that meet all the technical and operational standards recommended by the machine tool manufacturer.
Ball or roller bearing
It all depends on the specifics of the operation of a particular unit. There is a fundamental difference in how they are used. For example, a ball analog can operate at very high speeds without receiving additional loads. Using the minimum amount of liquid engine oil for lubrication. Roller has its advantages:
Withstands much greater physical exertion.
It is operated at relatively low speeds rotation.
Requires oil or grease lubrication of the rollers.
Ensures minimal wear in work processes.
Resists shock loads occurring in nodes.
Modern machine tools for processing metals, wood and polymers use both ball and roller bearings. Depending on the specific assembly, the machine needs either good resistance to high speeds, or to the loads created by the motor and metal workpieces. In addition, bearings must be of the highest accuracy class.
When it is worth changing bearings
During operation, without exception, all the nodes rubbing against each other are damaged. As soon as the gap between them reaches critical values, it needs repair. As a rule, the replacement of bearings completely restores the factory characteristics of machine tools. Replacement is necessary in the following cases:
the machine or its separate part has worked out the prescribed number of hours;
there is an inaccuracy of manufactured parts, systematically;
during the rotation of an unloaded machine, vibration is observed;
increased play of individual parts.
Even resistant to various types of loads radial bearing wears out gradually and cannot compensate for the increased clearances between the rollers. Proper selection and timely replacement help to restore the performance and accuracy of the machine. Without buying expensive new equipment.