① Peeling
Check the size of the load and the bearing again Institute
Improve the installation method
To improve the sealing device, prevent rust.
Using an appropriate viscosity lubricant to improve the lubrication method.
Check the shaft and housing accuracy.
Check the clearance.
(2) peeling
Selecting the lubricant
To improve the sealing device
Improve pairing rolling parts surface finish.
③ cards injury
Check the size of the load.
Preload should be appropriate.
Improved lubricants and lubrication methods.
Check shaft bearing housing accuracy.
(4) scratch
Improve the preload
To improve the bearing clearance
Good film lubricant
Improve the lubrication method
To improve the sealing device
⑤ fracture
Improve the installation method (thermal loading, using the appropriate tools folder).
The correct load conditions.
SKF bearings in place, so that the wall by the support.
⑥ crack, crack
Appropriate amount of interference.
Check load conditions.
Improve the installation method.
The shape of the shaft should be appropriate.
The damage of the cage
Check the installation method.
Check load, rotation, and temperature conditions.
Reduce vibration.
Correct cage choice.
Change the lubricant and lubrication method.
(7) indentation
The impact of the sleeve.
To improve the sealing device.
Lubricating oil filter.
Improve assembly and method of use.
The Lipi like pitting
To improve the sealing device.
Full oil filter.
Use a suitable lubricant.
⑧ wear
To improve the sealing device.
Clean the bearing housing.
Full oil filter.
Check the lubricant and lubrication method.
To prevent non-linear.
⑨ creep
Check the amount of interference,
Implementation ended rpm measures.
Be properly fastened tight sets.
Research axis and the precision of the bearing housing.
Axial preload.
The raceway wheel side fastening.
Bonding with the surface.
With topcoat lubricant.
⑩ rust, corrosion
To improve the sealing device.
Research lubrication method.
Rust preventive measures to stop the transfer.
Improve the storage method.
Use should be noted.
Product Model | Inside Diameter | Outside Diameter | Thickness |
NNU4930MBKRCC1P4 NSK | 150 | 210 | 60 |
NN4930MBKRCC1P4 NSK | 150 | 210 | 60 |