Patent ID: 8657500

Claim:
A bearing, comprising: a housing which is a hollow tube with an axial cavity inside; and an assembly including at least two elements, each element including two opposite ends, each end forming a connection portion, the at least two elements including at least one set of two adjacent elements being axially coupled together with one of the two adjacent elements abutting against another one of the two adjacent elements to allow at least one set of two abutting connection portions of the at least one set of the two adjacent elements to be contacted therebetween to form the assembly, and a largest circumferential outer wall surface between two connection portions of each element forming a mounting portion to allow the assembly to be fixedly encased in and fully contacted with the cavity of the housing to form the bearing, each element also containing an axle hole axially running through the two opposite ends thereof, the axle holes of the at least two elements forming an axial hole of the assembly for insertion of a spinning shaft to be supported and lubricated by the bearing; wherein at least one set of multiple notches is defined between the at least one set of the two adjacent elements of the assembly and annularly formed on at least one of the two abutting connection portions and communicated with the axle hole, each element further including at least one groove with an enlarged opening on a wall surface of the axle hole directing towards at least one of two connection portions, at least one set of multiple shaped recesses formed on the wall surface of the axle hole and communicated with the at least one groove, the bearing having at least one storage chamber to store lubricating media, the at least one set of multiple notches forming at least one set of multiple passages of the assembly to communicate with the at least one storage chamber and the axial hole.