in the bearings wear resistance assay to be working.

According to statistics, most of all rolling bearings lubricated with grease, so grease bearing life is an extremely important performance indicators. Grease in the bearing life tester temperature assessment, the grease can be simulated at a certain temperature, load, speed conditions, performance, therefore, the measured results of the actual use of a certain reference value. Is generally observed on the test machine, when the grease life is reached lipid membrane damage, destruction torque peak occurs, the test will stop automatically appear bearing temperature record will be accompanied by a sudden rise in the value indicated and dry friction noise, if after repeated start still not moving, it means the destruction of the grease film Pat end of the experiment, the test is carried out, asked the high temperature bearing grease life. Generally, the longer the life of the bearing grease, which means the use of the longer period.
SH/T0428 a 92 is a high temperature grease in the bearings wear resistance assay to be working.
Determination of grease bearing manufacturer grease leakage is simulated in the automotive and construction machinery wheel load bearing work in performance. SH/T0326-92 << grease leakage level testing "provides a method for measuring the amount of leakage, the method summary: take fat-like gDg, Yi installed with grease to wheel-like 859, are installed with little bearing grease samples 29 ± O.lg, another bearings are installed with a fat-like 39 ± O.l9. Speed ​​is 660r/min disabilities 3r/min, bearing temperature of 105 ℃ ± l ℃ tank temperature is 113 ℃ ± 0.5 ℃, running time is 10h, to grease the bearings were thrown to measure the amount of work the grease characteristics, and in the end of the trial to observe the surface condition of the bearing. Obviously, the greater the amount of grease leakage high temperature performance is worse.