When assembling CNC lathe bearings, the inclined rail CNC lathes must be preloaded, so that the original clearance after the bearing is installed will be eliminated, which means that the contact angle and precision of CNC lathe bearings play a very important role. Therefore, when installing the bearing, it is necessary to ensure that the contact angle is qualified and the actual width of the angular contact ball bearing must also be guaranteed to meet the requirements. It is common for bearings to fail during operation, so there is no need to make a fuss. When a fault occurs, judging and handling it is the key.
Let's analyze the common quality problems and reasons of inclined rail CNC lathe bearings.
1. Improper installation
1. Brute force is used during installation. Hitting the bearing directly with a hammer will cause great damage to the bearing; it is the main cause of deformation. This is very common in some small machine tool factories, and it can be avoided by using professional bearing installation tools.
2. The installation is not in place, the installation is deviated or not installed in the bearing position, resulting in too small bearing clearance. The inner and outer rings are not at the same rotation center, resulting in non-concentricity.
Suggestion: choose appropriate or professional bearing installation tools, and use special instruments to test after installation.
2. Pollution
Pollution can also lead to premature damage of the bearing. Pollution refers to the entry of dust, metal shavings, etc. into the bearing. The main reasons include: opening the bearing package prematurely before use, causing pollution; the working environment is not clean during installation, causing pollution; the working environment of the bearing is not clean, and the working medium is polluted.
Suggestion: It is best not to unpack the bearings before use; keep the installation environment clean during installation, and clean the bearings to be used; strengthen the sealing device of the bearings.
3. Poor lubrication
According to the survey, poor lubrication is one of the main causes of premature bearing failure. The main reasons include: not adding lubricant or lubricating oil in time; not filling lubricant or lubricating oil in place; improper selection of lubricant or lubricating oil; incorrect lubrication method, etc.
Suggestion: choose the correct lubricant or lubricating oil, and use the correct way of lubricating and filling.
4. Fatigue
Fatigue damage is a common damage method for bearings. Common causes of fatigue damage may be: long-term overloading of bearings; failure to repair in time; improper maintenance; equipment aging, etc.
5. Bearing quality
The quality of the bearing itself of the inclined rail CNC lathe is directly related to the service life.
2. Pollution
Pollution can also lead to premature damage of the bearing. Pollution refers to the entry of dust, metal shavings, etc. into the bearing. The main reasons include: opening the bearing package prematurely before use, causing pollution; the working environment is not clean during installation, causing pollution; the working environment of the bearing is not clean, and the working medium is polluted.
Suggestion: It is best not to unpack the bearings before use; keep the installation environment clean during installation, and clean the bearings to be used; strengthen the sealing device of the bearings.
3. Poor lubrication
According to the survey, poor lubrication is one of the main causes of premature bearing failure. The main reasons include: not adding lubricant or lubricating oil in time; not filling lubricant or lubricating oil in place; improper selection of lubricant or lubricating oil; incorrect lubrication method, etc.
Suggestion: choose the correct lubricant or lubricating oil, and use the correct way of lubricating and filling.
4. Fatigue
Fatigue damage is a common damage method for bearings. Common causes of fatigue damage may be: long-term overloading of bearings; failure to repair in time; improper maintenance; equipment aging, etc.
5. Bearing quality
The quality of the bearing itself of the inclined rail CNC lathe is directly related to the service life.
