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To make INA bearings in good condition to be able to maintain the proper performance and long-term use, inspection and maintenance must INA bearing inspection and maintenance is very important to prevent failure, we should focus on the operation rolling sound check INA bearings , vibration, temperature, and lubricants.
1.INA bearing rolling sound
INA Bearing noise is a INA Bearing itself, i.e., the inherent noise of the INA Bearing Another is the INA Bearing installed before the noise generated with INA Bearing own noise contents, some problems can be analyzed by listening to the sound.
A. inherent noise: raceway sound the - various INA bearings and rolling friction sound (INA cylindrical roller bearings) scroll INA bearings inherent sound the raceways sound generated by the elastic properties of the rolling element and raceway contact INA Bearing rotation, rolling element raceway scroll issue of a continuous and smooth sound, abnormal sound of rolling friction can be issued a "creak, creak like uncomfortable metal friction abnormal sound, well-oiled without will issue such a voice, so not a problem in the general case, the only noise increases before they need to pay attention.
B. INA Bearing Manufacturing noise: noise and vibrato cage, cage noise occurs mainly in the ball INA bearings and tapered roller bearings, INA Bearing rotation due to vibration of the cage and the cage and rolling body collision will sound. The sound is cyclical The vibrato (INA bearings) is the sound of a certain frequency, is the raceway and there is the vibration caused by the large waviness.
C. noise caused by improper use: there are for a variety of INA bearings. When the INA Bearing raceway surface or rolling surface by bumps, indentations, corrosion, then it will generate the noise and vibration of a certain period, when the INA Bearing dust intrusion in operation will produce dirt noise, this aperiodic noise is also accompanied by vibration, the sound is not fixed in size, sometimes no.
2.INA bearing vibration
The impact of vibration on the effectiveness of the INA Bearing INA Bearing obvious. For example: pineapple, indentation, corrosion, cracks, wear and tear and will be reflected in the INA bearing vibration detection, so special INA bearing vibration measuring devices (frequency analyzer and vibration instrument) to measure the size of the vibration by frequency distribution inferred of abnormal vibration of the specific circumstances of the measured values due to the conditions of use of the INA Bearing or sensor mounting position, etc., and different, and therefore requires prior analyzes the measurement values of each machine is relatively thick determining criteria.
3.INA bearing temperature
Normally INA Bearing temperature slowly rise with the start of operation 1-2 child reaches a steady state, the INA bearing normal temperature varies due to the heat capacity of the machine, the amount of heat, the rotational speed and the load. Lubrication, improper installation, INA bearing temperature will soar, abnormal high temperature. This must be very anxious to take the necessary precautions.
4 lubricant
Lubrication the scroll the INA bearing fatigue life and friction, wear, heat up, vibration, etc. have a major impact, not normal lubrication can not work, INA Bearing, damage analysis INA Bearing reason shows that, about 40% of the INA bearing damage and lubrication related to poor. INA bearings well lubricated is an effective measure to reduce the the INA bearing friction and wear. In addition, INA bearing lubrication cooling, anti-rust, sealing, ease shocks and other works. To ensure that the lubricant can not be expired, the selection should be correct, the harvester INA bearing lubrication lubrication of the oil and greased two. Large models gearbox oil lubrication gear oil GL-580W90; grease for general use molybdenum disulfide lithium base grease, grease increasing torque converter continuously variable transmission the lower part of the device must be used the Mobil XHP222 or better grease.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7218ATYNSULP4 NSK | 90 | 160 | 30 |
| 7218A5TYNSULP4 NSK | 90 | 160 | 30 |