Rolling bearing heat solution
The shaft parts of the machine tool, especially the main shaft, are generally assembled with rolling or plain bearings and rotate at a high speed, sometimes generating high heat. If this phenomenon is not eliminated in time, it will cause the bearing to overheat and cause the temperature of the corresponding part of the machine tool to rise and cause thermal deformation. In severe cases, the spindle and the tailstock will not be equal, which will not only affect the precision and machining accuracy of the machine itself, but also Burn the bearing.
Causes of rolling bearing heating and its elimination
(1) Reason: Low bearing accuracy
Method: Select the bearing with the specified accuracy level.
(2) Reason: The spindle is bent or the hole of the box is different.
Method: Repair the spindle or cabinet.
(3) Reason: the belt is too tight
Method: Adjust the belt to make it elastic.
(4) Reason: poor lubrication
Method: Select the lubricating material of the specified grade and clean it properly.
(5) Reason: low assembly quality
Method: Improve assembly quality.
(6) Reason: bearing inner casing running circle
Method: Replace the bearing and associated wear parts.
(7) The axial force is too large
Method: Clean and adjust the clearance of the seal ring between 0.2 and 0.3mm, correct the balance of the impeller and verify the static balance.
(8) Bearing damage
Method: Replace the bearing.
