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Spherical roller of NTN
- Category: Spherical roller bearings
- Description:NTN is one of the world& 39;s comprehensive precision machinery manufacturers The company was founded in Japan in...
- Email:admin@jngybearing.com
- TEL:+86 15165026537
- Company:Ji'nan Guang Yue Pml Precision Mechanism Ltd Of China
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NTN is one of the world's comprehensive precision machinery manufacturers. The company was founded in Japan in 1918, headquartered in the West District of Osaka. There are 11 manufacturing institutes, 25 business offices and 3 research institutes in Japan, and 20 sole proprietorship plants, 2 research institutes and 48 business offices in the country. NTN's production, sales and technology departments have been working hard to develop and deepen their professional fields, and at the same time, they have been combined organically. The current chairman is Suzuki Yasunobu.
When checking NTN bearings, never allow bearings to be exposed to pollutants or moisture. If the work is interrupted, the machine must be covered with oil paper plastic sheets or similar materials. In order to judge whether the dismantled NTN bearings can be used again, the size accuracy, the rotation accuracy, the internal clearance, the matching surface, the raceway surface, the cage and the sealing ring should be emphasized.
The inspection results can be judged by the use of inertial bearings or proficient bearings.
The criteria for judgement vary according to mechanical performance and importance and inspection cycle. If the following damage occurs, NTN bearing shall not be reused and must be replaced.
A) fracture and defect of bearing parts.
B) the stripping of the rolling surface of the surface of the raceway.
When the NTN bearing is removed for inspection, the photographic record is used for the first time. In addition, confirm the amount of remaining lubricant and sample the lubricant, then clean the bearing.
A and NTN bearings are cleaned by coarse washing and fine cleaning, and metal grids can be placed at the bottom of the containers.
When B or rough washing, remove grease or adhesive with brush in oil. At this point, if the bearing is rotated in the oil, it is noted that the rolling surface will be damaged due to foreign bodies and so on.
C, fine wash, slowly rotating NTN bearings in oil, must be carefully carried out.
Usually the cleaning agent is neutral non water diesel or kerosene, sometimes used warm alkali liquor as required. No matter which detergent is used, it must be filtered regularly to keep it clean. After cleaning, apply rust preventive oil or rust preventive grease to NTN bearings immediately.
