The support rollers comprise a special type of bearings used in conveyor systems and various roller drives. These are one- or two-row ball and needle parts mounted on the axis of the mechanism. The rollers are designed for large radial, as well as moderate axial loads. Due to the fact that these units withhold skews well, they are indispensable in cam drives, guiding devices and transport mechanisms of various types and purposes. The support rollers can be with or without an inner ring, detachable or one-piece, with seals or without them.