Tapered roller bearing

The utility model relates to a tapered roller bearing and belongs to the technical field of bearings, the tapered roller bearing comprises an outer ring, an inner ring, a retainer and a plurality of rollers, the inner ring is coaxially located on the inner side of the outer ring, the retainer is coaxially located between the outer ring and the inner ring, a plurality of fixing grooves are formed in the retainer at intervals, and the rollers are arranged in the fixing grooves at intervals. The multiple rollers are installed in the corresponding fixing grooves, the rollers abut against the inner wall of the outer ring and the outer wall of the inner ring, a first sealing ring and a second sealing ring are arranged between the outer ring and the inner ring, the first sealing ring is located on one side of the retainer, and the second sealing ring is located on the other side of the retainer. The risk that lubricating oil flows out can be reduced. 本申请涉及一种圆锥滚子轴承属于轴承技术领域，其包括外环、内环、保持架以及滚子，所述内环同轴位于所述外环内侧，所述保持架同轴位于所述外