We use the following techniques to judge whether the angular contact precision bearing has reached wear failure: 1. Technical characteristics of oil floating resistor diagnosis: The same evaluation standard can be used for different types of working condition standards. It is ineffective in diagnosing abnormalities such as surface peeling, imprinting, and cracks. Application field: suitable for places where the rotating shaft is exposed. 2. Technical characteristics of vibration diagnosis: The key technology of vibration diagnosis is common; online monitoring can be realized; diagnosis is fast, and the basic theory of diagnosis has been perfected. Field of application: Ideal for fault detection of angular contact ball bearings in rotating machinery. 3. Features of ferrographic diagnosis technology: No need to disassemble the equipment; low project investment, obvious effect; can find the initial fatigue failure of oil-free bearings; can do scientific research on wear mechanism. Application field: It is suitable for common fault diagnosis of angular contact ball bearings lubricated with lubricating oil, and it is more difficult for bearings lubricated with grease. 4. Technical characteristics of ambient temperature diagnosis: Simple diagnosis; better identification of bearing burns. Field of application: simple and basic diagnosis of bearings in suitable equipment. 5. Technical features of optical fiber line detection and diagnosis: high sensitivity of optical fiber line angular displacement sensor; directly obtain data signal on the surface of oil-free bearing, which improves frequency stability; can directly reflect the manufacturing quality, surface damage level and load of angular contact ball bearings , lubrication and porosity conditions. Field of application: Applicable to equipment where the sensor can be installed in the bearing housing. 6. Technical characteristics of acoustic emission diagnosis: Rapid and simple diagnosis; online monitoring is available. Application fields: In recent years, new technologies have been developed, and they are rarely used in the detection of bearing working conditions. During the inspection process, when picking and placing all oil-free bearings by hand, the sweat on the hands should be thoroughly washed off, and high-quality mineral oil should be applied before the actual operation. In the rainy season and summer, special attention should be paid to anti-rust treatment. Under certain special operating conditions, angular contact precision bearings will obtain a life that is better than the traditional calculation, especially under light load conditions. This particular operating criterion is when the rolling surfaces (rails and rolling parts) are effectively separated by a grease film and limit the possible surface damage caused by contaminants. In fact, under idealized conditions, said permanent bearing life is possible. Only when the torque is accurate can the rotation be stable! 37 years of focus on R&D and production of angular contact precision bearings! (http://)
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