| Citation: | ZHANG Jiaming, QIU Ming, PANG Xiaoxu, et al. Test and analysis of skidding characteristics of high-speed and light-load cylindrical roller bearings[J]. Journal of Aerospace Power, 2023, 38（12）：2991-2999 doi: 10.13224/j.cnki.jasp.20220042
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Experimental and theoretical studies were carried out to solve the problem of aeroengine cylindrical roller bearing skidding under high speed and light load. Based on the skidding test of rolling bearing, the influence of inner ring speed and radial load on bearing skid characteristics was investigated. At the same time, considering the variation of working radial clearance of the bearing, the force on the roller and the total torque of the bearing were solved, and analyzed with the test results. The results showed that when the speed of the inner ring of the bearing was lower than 10 000 r/min, the increasing radial load increased the radial clearance of the bearing and aggravated the degree of skidding. With the increase of inner ring speed, the working radial clearance of bearing decreased gradually. There was a critical inner ring speed, when the bearing slip rate was the maximum. The critical speed of inner ring was different under different radial loads, and the critical speed of inner ring was between 7000—8 000 r/min in this test. The total torque of the integral roller of bearing directly affected the sliding degree of bearing.
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