Bearing capable of preventing large foreign matters from being clamped into gaps

The utility model relates to the technical field of bearings. The utility model relates to a bearing, in particular to a bearing capable of preventing large foreign matters from blocking gaps. Bearinginner ring, a bearing outer ring is sleeved outside the bearing inner ring; a support frame is arranged between the bearing inner ring and the bearing outer ring; the supporting frame is cylindrical,and a plurality of square through holes are annularly formed in the side wall of the cylinder. A cylindrical roller is arranged in the square through hole of the support frame; two symmetrically-distributed isolation devices are arranged outside the supporting frame. The isolation device is positioned between the bearing inner ring and the bearing outer ring; the isolation device is positioned atthe end part of the bearing outer ring; according to the bearing, the purpose that the bearing automatically bounces off foreign matter is achieved through the simple structural design, the foreign matter is prevented from ent