The rolling elements (10a, 10b) of the pair of rows roll off on a rimless outer bearing ring (1, 2, 3) and on a rimless inner bearing ring (4, 5).

The rolling elements (10a, 10b) of the pair of rows roll off on a rimless outer bearing ring (1, 2, 3) and on a rimless inner bearing ring (4, 5).

An endless tread engages a pair of wheels to define a planar bottom surface of the endless tread.

Cages for roller bearings are used to guide rolling bodies in relation to each other between an inner ring and an outer ring without contact.

A bearing device for a wheel, where information on the bearing device can be easily confirmed without removing it from a vehicle.

The structure reduces rotation torque of the bearing without sacrificing its durability.

The retaining piece is connected to the rolling bearing without any play and the shaft is connected to the retaining piece without any play.

Provided is a pneumatic tire having an improved rolling resistance without lowering wear resistance.

This other end has wheels arranged to roll along a track without sliding.

As a result, it becomes possible to obtain the behavior of the lubricant inside the bearing in detail, without dismantling the bearing.

A slip-free rolling bearing (1) is specified, in the outer ring (3) of which there is formed an encircling groove (7).

Bearings without a cage incorporate a maximum number of rollers.

This type of cage-free bearing is able to incorporate a maximum number of rollers.