How to deal with the high temperature problem of NC lathe bearing and its principle?

CNC lathes are becoming more and more popular in the market, and their performance is excellent. Many manufacturers buy CNC lathes. However, some faults will inevitably occur in the process of use. The following is introduced by the NC lathe manufacturer, how to deal with the high temperature problem of NC lathe bearing and its principle.

The purpose of setting the guide bearing of NC lathe is to limit the work of the generator spindle so that it can only bear the radial load on the generator spindle within the specified guide bearing clearance.

1、 Causes of bearing temperature rise

1. The contact point on the surface of shaft ceramic tile is small, and the contact surface is insufficient, which does not meet the requirements of equipment specifications.

2. The increase of bearing clearance is far greater than the clearance required by the design, which makes it difficult to form an oil wedge when the lubricating oil enters the bearing pad surface, resulting in poor lubrication, increasing the temperature of the guide bearing and increasing the vibration of the unit.

2、 Solution to temperature rise of guide bearing

When lubricating the ceramic tile surface, through the swing point of the main shaft, although the matching gap is small, due to the short distance, good lubrication conditions, less heat generated by friction and good cooling effect, it generally will not lead to bearing temperature rise and ceramic tile combustion.