YRT bearings are a combination of high precision, low torque and long life bearings. The structure consists of an outer ring, two inner rings, two sets of cages and three rows of rollers. The race and the collar have uniform mounting screw holes. Two rows of rollers constitute a Thrust Bearing capable of withstanding a two-way load, and the third row of rollers serves as a radial guide. Its accuracy is divided into normal level and compression level.