Bearing device for supporting a wheel and equipped with braking means

An assembly comprising a hydraulic motor and a bearing device for supporting a wheel and equipped with braking means, said device including a rotary shaft which is disposed in a stationary casing and which carries a rotary plate suitable for supporting a wheel rim, the bearing device including a stationary hub disposed around the rotary shaft, a bearing unit comprising at least one rolling bearing supporting the shaft as it rotates relative to the hub, and braking means comprising a first series of at least one annular brake disk secured to the hub and a second series of at least one annular brake disk constrained to rotate with the shaft relative to the hub, the motor being a hydraulic motor having radial pistons, the stationary hub constituting a casing portion of the motor, and the bearing device including a first axial wall element forming a rotary brake ring constrained to rotate with the shaft relative to the hub and disposed around a portion of said hub that forms a second axial wall element, and each disk of the second series being secured to the inner periphery of said rotary brake ring, while each disk (28) of the first series is secured to the outer periphery of said second axial wall element surrounded by the rotary brake ring.