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Rolling bearings are rolling bearings work under the friction
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| Time：2016.10.04 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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Under the action of a certain load, the bearing in the event of pitting before the number of revolutions or hours, known as bearing life.
The life of a rolling bearing is defined in terms of the number of revolutions (or hours worked at a certain speed): The bearing within this lifetime shall be subject to preliminary fatigue damage (peeling or defect) on any of its bearing rings or rolling elements. However, whether in laboratory tests or in actual use, can be clearly seen in the same working conditions, the appearance of the same bearing, the actual life is very different.
In addition there are several different definitions of bearing "life", one of which is the so-called "working life", which means a bearing before the damage can be achieved by the actual life is wear and tear, damage is usually not caused by fatigue, but From wear, corrosion, sealing damage and other reasons.
Rolling bearings are rolling bearings work under the friction. Rolling bearings easy to use, reliable, good starting performance, the higher the carrying capacity at medium speed. Compared with the sliding bearing, radial bearing large radial size, vibration capacity is poor, high-speed low life expectancy, sound greater. Rolling bearings in the radial bearing (mainly to bear radial force) usually by the inner ring, outer ring, rolling element and the rolling element cage 4 parts. The inner ring is tightly fitted on the journal and rotates with the shaft, and the outer ring is installed in the bearing seat hole. A raceway is formed on the inner periphery of the inner and outer rings. When the relative rotation of the inner and outer rings, rolling the inner and outer ring raceway rolling, they are separated by the cage to avoid friction with each other. Thrust bearing sub-tight ring and the two parts live. Tight ring and sleeve tight, live ring bearing in the bearing seat. Rings and rolling elements are usually made of high strength, good wear resistance of the rolling bearing steel, hardened surface hardness should reach HRC60 ~ 65. Cage made of multi-purpose stamping of soft steel, copper alloy can also be used cloth or plastic bakelite and other manufacturing.
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