Full roller bearing without outer ring, has high radial load capacity and impact resistance, and can bear bidirectional axial load, mainly used for roller support. This series of bearings has an outer ring and two inner rings. After installation, the inner locking arrangement keeps the bearing as a whole. The width of the outer ring of the full-roller bearing without outer ring is 1mm smaller than the total width of the two inner rings. The outer ring is equipped with a stop ring, and there are oil holes and oil grooves at the joint of the two inner rings, which simplifies the design of the application part. Whether the chamfer is well-proportioned The so-called chamfer of the bearing, that is, the account of the horizontal and vertical surfaces, the counterfeit bearing products are not satisfactory in these corners due to the limitation of manufacturing technology, we can Relax the distinction. 6. Packaging Bearings packaging and outer packaging After the bearings are manufactured and passed the inspection, they will be cleaned and rust-proof, and then put into the inner packaging to achieve waterproof, moisture-proof, dust-proof, anti-strike, and protection of the bearing. quality and precision as well as ease of application and sale. From the analysis of the occurrence, countermeasures and experimental results of fretting wear in the product development process, adequate lubrication is one of the very effective ways to avoid fretting wear. Analysis of other components that aggravate fretting wear 1. The needle rollers are not compared with the inner and outer raceways. The fretting wear marks of rotating needle roller bearings are usually equidistant indentations. The inner hole and the shaft revolve all the way, the needle roller does not rotate, and the needle roller does not rotate compared with the inner hole of the gear and the outer diameter of the shaft. Bearing material Bearing steel features: contact fatigue strength Bearing under the benefit of cyclic load, the contact surface is very prone to dull damage, that is, cracks and spalling occur, which is a serious damage form of the bearing. Therefore, in order to improve the service life of the bearing, the bearing steel must have a very high contact fatigue strength. When the wear-resistant bearing is in use, not only a rotational conflict occurs between the ring, the rotor and the cage, but also a sliding conflict occurs, so that the bearing parts are constantly worn. In order to increase the wear of bearing parts, maintain the accuracy and stability of the bearing, and prolong the service life, the bearing steel should have very good wear resistance. By monitoring the change trend of the XP/Xrms value over time, it can be useful to carry out an early prospect of the rotating bearing failure, reflecting the development and change trend of the failure. Full-roller bearing without outer ring When the rotating bearing has no fault, XP/Xrms is a small stable value; once the bearing is damaged, it will produce a striking light signal, and the vibration peak value will increase significantly, but at this time the root mean square value has no value. Significantly increased, so XP/Xrms will increase. When the fault continues to disperse and the peak value gradually reaches the limit value, the RMS value starts to increase, and the limit value/limit value gradually decreases until it returns to the size when there is no fault. The rated life of the bearing is defined as one million revolutions (at 10, the maximum load that can be sustained is the basic rated dynamic load, represented by C. That is, under the benefit of the rated dynamic load C, the bearing can work for one million The reliability of turning (10) without pitting corrosion is 90%. The larger the C, the higher the bearing capacity. For the basic dynamic load rating 1. The radial bearing refers to the pure radial load 2. The thrust ball bearing refers to the pure axial load Load 3. Radial thrust bearing refers to the radial weight that produces pure radial displacement.
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