The present invention relates to a linear ball bearing (2) comprising a substantially sleeve-like cage (4) for receiving a plurality of axial ball loops (6) that are distributed across the circumference of the cage, wherein each ball loop has a first ball channel that is open radially to the inside and to the outside for the row of the carrying ball (8), and a second ball channel, open radially towards the outside for the row of the non-carrying balls (10) and comprises deflection channels that connect the ball channels of a ball loop (6) to each other, and wherein at least the first ball channel is covered on the outside by a load-bearing carrier plate (16). Individual support surfaces (20, 39) are provided on the carrier plates (16), said surfaces resting on predetermined support regions (22, 40) on the outer lateral surface of the cage (4). The carrier plates (16) are positioned via interacting positioning means (32, 34; 36, 38) in the predetermined positions thereof on the cage (4). The carrier plates (16) resting against the cage (4) are fixed to the cage (4) via holding rings (50, 52) that are slid over the carrier plates.