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Aligning ball bearing lubrication is the best plan in the implementation of equipment downtime, and regularly at the same time increasing the loss by removing old grease or oil, empty out the old grease. When adding a new nozzle oil should be cleaned. If there is no injection nozzle should be open FAG bearing cap or cover, remove the old grease, clean up, add new oil the same type.
Bearing, in order to ensure the normal operation, we need to regularly check, under normal circumstances the oil level and oil lubrication, the oil level should be normal oil level window or labeled equipment 1/3-2/3 range. The way for the oil cup oil, which means that the oil fill oil its display capabilities, and bearing housing oil level, to meet the oil cup bit more than 1/4 of the total volume of lower operating requirements, considering the make up oil.
Inspection and fill oil is to remove a small amount of new oil and petroleum as the ability to compare the sample unit may be considered on oil quality testing to ensure that the oil qualifications. If the sample appears
Proper installation and maintenance of normal operation is self-aligning ball bearing is an important factor, we must pay attention to maintaining self-aligning ball bearing clean. Bearings must be protected to prevent contamination and water pollution, there must be proper installation and lubrication. In addition, self-aligning ball and column design, sealed, and specialized repair and replacement cycle to form a lubricating bearings are also played an important role and must be concerned about.
Aligning ball bearing grinding heat consume a lot of energy, resulting in a large number of grinding heat, causing the local instantaneous grinding zone temperature. Linear heat transfer theory, the formula is derived motion, calculation or application methods and experimental conditions, the instantaneous measured temperature, infrared thermocouple method, in 0.1-0.001ms instantaneous temperature in the grinding zone by up to 1000 - 1500 ℃. This instant heat, enough to heat generated by the working surface oxidation, amorphous structure, high-temperature tempering, secondary hardening, cracking, and even burns and other changes in the surface layer of a certain depth.
Before using FAG bearings, first check the bearing surface, which can be inferred that the bearing is not loading our requirements and standards. Check the bearing surfaces should astigmatism lamp operation, to the bearing and surface cracks at the detailed examination.
First, the sound of the rolling bearing: Bearing even with slight peeling damage, the use of sound measuring device for the operation of the bearing and the size of the rolling sound quality for introspection. Also announced that abnormal tone irregular sounds, with sound measuring device can differentiate.
Normal room temperature outside of a bearing can be speculation out, bearing temperature. If the application can directly measure the bearing outer ring hole temperature is more suitable position. Mortal, bearing temperature gradually increased along with running start, 1-2 hours after arrival unchanged form. Bearing normal temperatures due to mechanical heat capacity, heat capacity, speed and load differences. If smooth, suitable for mounting portion, the abrupt increase in bearing temperature, will show an abnormally high temperature, then abort the operation necessary, bearing accepted precautionary approach needed. Because of the temperature by the smooth, speed, load, of the situation, the table values are only approximate temperature revealed that the performance limitations. The use of thermal sensors that constantly monitor the task of bearing temperature, and complete rules temperature values across the active alarm user or abort to avoid burning shaft becomes recklessly
In addition, FAG bearings of the seat ring and the bearing hole should be left between 0.2-0.5mm gap to compensate for parts processing, the error caused by mounting inaccuracy, when the central bearing ring offset operation, this gap would ensure its automatic adjustment, avoid touching the friction to operate normally. Bearing installation accurately, its seat can automatically adapt to move the body to move, make sure to move the upper and lower raceway body is located. Aligning ball bearings installed, it should overhaul shaft ring and the vertical axis of the center line. Otherwise, it will cause severe damage to the bearing. Method is fixed to the tank shell dial gauge face, the head of the table to touch the ring raceway of the bearing shaft upper bearing, while observing dial gauge pointer, if the pointer deflection, indicating ring and the shaft axis is not perpendicular to the center line.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7321A NSK | 105 | 225 | 49 |
| 7221C NSK | 105 | 190 | 36 |