Installation And Service Life Extension Of Nsk Bearing
Installation And Service Life Extension Of Nsk Bearing
2022年1月9日
Whether The German Fag Bearing Is Installed Correctly Affects The Performance And Service Life Of The Bearing
Whether The German Fag Bearing Is Installed Correctly Affects The Performance And Service Life Of The Bearing
2022年1月9日

Common Problems And Installation Methods Of Nsk Bearing

Installation Methods

NSK bearing failure is common during operation, so don’t make a fuss. Failure judgment and treatment are Installation Methods crucial. Today, we explain common problems and bearing removal means.

1. NSK bearing temperature

In the operating mechanism, the bearing parts installed allow a certain temperature. When touching the fuselage shell, it should not feel normal heat, and vice versa, the Installation Methods bearing temperature.

Reasons for NSK bearing temperature: the oil quality does not meet the requirements or deteriorates, and the oil viscosity is too high; Body assembly is too tight (insufficient Installation Methods space); The bearing assembly is too tight, the shaft or rotating housing on the bearing ring, excessive load, NSK bearing cage or body debris, etc.

2. NSK bearing noise

NSK bearing is allowed to make slight noise during operation. If the noise is Installation Methods too loud or unusual noise or collapse, then NSK bearing fails.

NSK bearing noise is a more complex reason. One is the surface wear of the bearing inner and outer rings. Due to this wear and tear, the relationship Installation Methods between NSK bearing and housing, bearing and shaft sleeve is damaged, resulting in deviation from the correct position and abnormal sound on the shaft of high-speed shaft.

When the bearing is tired, the metal sheet surface will increase, but the radial clearance of NSK bearing will also produce abnormal sound. In addition, NSK Bearings are not lubricated enough to form dry friction, and bearings will have abnormal sound of cracking. The NSK bearing is worn, the cage is loose and damaged, and there is also abnormal noise.

Common Problems And Installation Methods Of Nsk Bearing

Installation method of NSK bearing

NSK bearing and shaft sleeve are generally, seat and NSK bearing hole are generally clearance fit transition, and bidirectional thrust bearing ring shall be fixed on the shaft to prevent relative rotation of the shaft. The installation method of NSK bearing, under normal circumstances, is mostly shaft, so the inner ring and shaft are pulled together, and the NSK bearing and bearing clearance fit the outer room.

For NSK bearing installation, you should check that the axis of the center line of the ring and shaft sleeve is vertical. The dial indicator is fixed on the can body. Touch the gauge Installation Methods head of the bearing raceway above the NSK bearing and rotating shaft. At the same time, observe the pointer of the dial indicator.

If the pointer deflects, it indicates that the axis of the ring and shaft sleeve is not perpendicular to the centerline. When the shell hole is deep, the head can also use the extension of dial-up test instrument. Whether the NSK bearing is installed correctly, the seat can automatically adapt to the body to ensure that the mechanism is located in the upper and lower raceways.

If it is installed reversely, not only the NSK bearing does not work normally, but also the mating surface will be seriously worn. As the difference Installation Methods between bearing seat ring and ring is not very clear, the assembly should be careful not to make mistakes.

In addition, there is a gap of 0.2 – 0.5mm between the bearing race and the seat hole to compensate for the inaccuracy caused by part processing and installation errors, and the operation center is offset from the NSK bearing ring, so as to ensure its automatic adjustment and avoid the normal operation of contact friction. Otherwise, NSK bearing will cause serious damage.