Damage of NSK bearing in Xuzhou reducer is a common problem. In addition to the quality problems of the bearing itself, the c***tant point reducer also lists the other causes of bearing damage for your reference.
1: The bearing room is not clean and there is no oil. Bearing has the advantages of high rated load, low noise, greatly reducing maintenance costs and prolonging machine operation time. For example, the tiny rigid material in the bearing cage has not been thoroughly cleaned, and the bearing raceway is damaged in operation, resulting in excessive temperature rise of the bearing and burning out the bearing.
2: Because of the excessive temperature rise of the motor body, Xuzhou NSK bearings are insufficient in oil replenishment, resulting in oil shortage or even burnout of bearings.
3: improper assembly of bearing, such as uneven tapping of bearing inner ring under cold load, resulting in shaft wear, resulting in interference loss between bearing inner ring and bearing, or reducing interference, leading to inner ring operation. The uneven tapping of motor end cap results in improper matching between bearing chamber and bearing outer ring, resulting in outer ring offset. By touching the steel stamp on the bearing, the bearing can be recognized more quickly and accurately. If you touch the stamp with your hand, you won't feel it. However, the existence of steel stamps can be touched by nails. Whether the inner ring or outer ring will cause the temperature rise of the bearing to rise sharply and burn out, especially the failure of the inner ring will lead to the rotation of Xuzhou NSK bearing shaft. Severe wear and bending. However, the intermittent operation of the outer ring usually does not lead to a sharp rise in bearing temperature. The outer ring is allowed to run intermittently as long as the bearing is in good condition.
4: Because of the axial misalignment of stator and rotor cores or the low accuracy of re-alignment of rotating axles after processing, the inner and outer rings of bearings are not in the tangential plane, which makes the bearings run without hardening, and the later temperature rise burns out.
5: After the replacement of Xuzhou NSK bearing, excessive interference or elliptical motor end cover will lead to too ***all or uneven ball clearance, resulting in increased friction, temperature rise sharply until burnout.
6: Bearings are damaged by mixing different types of grease.
7: Standby machine is not running for a long time, grease deterioration, bearing rust, not repaired. When Xuzhou NSK bearing recognizes the authenticity of the bearing, it can recognize the authenticity of the bearing more quickly and accurately by touching the steel seal on the bearing. Stamps are not touchable if touched by hand, but they can be touched by nails.
For the above seven cases, you can compare the problems encountered in the use process. If so, immediately improve the use of extended reducer bearings.
Article from: Xuzhou SKF Bearing www.wh-skf.com
Article from: Xuzhou INA Bearing www.ina-China.cn
Article from: Xuzhou NSK Bearing www.klbbearings.com