Deep groove bearings:
Deep groove bearings are the most common type of rolling bearings. The basic deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of retaining brackets. There are two types of deep groove ball bearings: single row and double row. Deep groove ball structures are divided into sealed and open structures. Open type means that the bearing does not have a sealed structure. Sealed deep groove balls are divided into sealed and oil-proof seals. The sealing cover is made of stainless steel and simply prevents the bearing from entering the bearing raceway. The oil-proof type is a contact oil seal, which can effectively prevent the grease in the bearing from escaping.