The Reasons for the Increase in Surface Temperature of Linear Bearing Steel Balls

During the use of linear bearings, many users may observe a significant reddish hue on the bearing's surface, while others may notice the emission of white smoke from the surface of linear bearings. Regardless of the specific situation, both are caused by an increase in the temperature of linear bearings.

The temperature increase in linear bearings does not occur without reason, and various factors related to usage and the product itself can lead to such occurrences.

1: Excessive Friction

The tightness of the connection gap between the linear bearing and the equipment is too small. When the bearing rotates, it exerts an outward thrust. However, this thrust cannot be effectively transferred outward, and a portion of it will return to the bearing. As a result, some bearings experience an increase in frictional force. This is due to the improper positioning during installation.

2: Excessive Rotation Speed

The rotational speed of linear bearings is not a major technical parameter when selecting them. According to theoretical data, the speed of rotation itself is unrelated to linear bearings. However, often due to differences in the materials of linear bearings, some bearings experience a decrease in heat transfer performance when rotating at high speeds. With increased usage over time, the stability of the metal decreases. Such issues are common occurrences.

3: Exceeding the Operating Hours

Each linear bearing has its own service life, and it should be replaced once it reaches the end of its service life. Don't use linear bearings beyond their recommended service life in an attempt to save costs. This is not beneficial for the mechanical equipment itself. If the mechanical equipment experiences a malfunction, the resulting losses can be substantial.