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NSK causes angular contact ball bearing noise there are three main reasons: bearing with dust, with bruises, improper lubricants (choose the wrong lubricant, lubricant, lubricant ageing induration is missing) one by one to answer them below.
Dust causes noise bearing
If the bearing will attack non-periodic oscillation and vibration and noise of the large and irregular, intermittent, indicating that bearings are dust and other foreign bodies.
Ways to solve dust lead bearing noise: cleaning options for improving bearing, in front of the appliance matched bearings, shafts, holes and parts all severe Shen Qing clean II put foreign body from his smooth agent; three improve bearing seal; IV to prevent the use of information not pure or plastic stick with embedded foreign body.
Injuries result in bearing noise
If the bearing vibration and noise of the attack as cyclical as the rivet rivets, its period is fixed, but necessarily correspond with speed, indicating that the appearance of angular contact ball bearings NSK have cracking, creasing or corrosion.
Way to resolve these injuries lead to bearing noise: when a device is not knocking bearings, bearing and shaft assembly after mount housing to avoid bearing in oblique; two stocks to avoid corrosion of bearings and transport to avoid vibration and shock; three application viscosity, high smooth fat.
Lubricant due to bearing noise
If the bearing noise of the attack did not rule, that bearing is improper lubricants.
Address lubricant caused by improper methods of bearing noise: improper lubricant can be divided into three categories: a wrong choice of lubricant, lubricant is missing the second; three aging induration of lubricants. To select a suitable lubricant, lubricant to lubricate the amount added, regular replacement of lubricants.
Lubricant due to the bearing noise is not terrible, injuries cause the bearing noise is not terrible, dust causes the bearing noise is not afraid because we have the means to solve the problem.
1, cleaning
Angular contact ball bearings NSK removed when checking, first with photography and other appearance record. In addition, to confirm that the amount of remaining lubricants and lubricant samples, and then clean the bearings.
NSK bearings, angular contact ball cleaning carried out in rough washes and fine wash and use the metal rack on the bottom of the container.
When b, heavy wash, clear grease or oil with a brush of adhesion. Rotation bearing in case oil, attention is due to foreign object damage angular contact ball NSK.
C when you finish washing, slowly rotating bearings in oil, be careful.
Typically use a neutral cleaning agent that contains no water diesel or kerosene, Lye temperature are sometimes used as needed. No matter what kind of cleaning agents, are often filtered clean.
After cleaning, coating rust preventive oil or rust-proof grease on the bearings immediately.
2, check with the judge
In order to determine the bearing can be removed again, to focus on checking their dimensional precision, running accuracy, internal clearance as well as the mating surfaces, Raceway, cage and seals.
On the inspection results were judged by the used bearings or bearing savvy.
Criteria based on the mechanical properties and importance, as well as examination cycles vary. If following injury, angular contact ball bearings NSK shall not be reused and must be replaced.
1) NSK angular contact ball bearing parts for faults and defects.
2) Raceway of angular contact ball NSK split.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7018CDF NSK | 90 | 140 | 24 |
| 7018ADF NSK | 90 | 140 | 24 |