Full complement cylindrical roller bearings are designed in order to withstand heavy loads. Under the same width, the bearings compared with traditional caged bearings, has a very high capacity, small radial cross section, you can save space, but the speed is relatively low. In order to make work properly, in the case of continuous operation, bearings must be subjected to a certain minimum load, that is, C/P<25. Otherwise, due to lack of lubrication and high speeds will increase wear. All multi-row cylindrical roller bearing outer ring with lubrication groove and lubrication hole.