A wheel bearing unit includes a first inner ring having an axial end side, a second inner ring having an axial end side contacting the axial end side of the first inner ring at a joint, and a seal unit that seals the joint between the first inner ring and the second inner ring. The seal unit includes at least one seal element and at least one further component that exerts pressure on the at least one seal element, and the at least one further component is at least partially comprised of sheet metal.

A bearing unit, for supporting a pinion shaft having at one side a pinion head, includes a taper roller bearing and an angular ball bearing, the bearings having a common outer race ring and separate inner race rings. The inner race rings are spaced apart a distance along the pinion shaft, and the taper roller bearing has a contact angle from 15 to 20 for absorbing mainly the radial force component of the tooth force at the pinion head, and the one-row angular ball bearing has a contact angle of between 35 and 45 for absorbing mainly the axial force coming from the gear mesh and that induced by the taper roller bearing.

A blade root extends in a longitudinal direction between a proximal end and a distal end. The rolling bearing allows oscillation of the root about an axis extending in the longitudinal direction relative to a housing. The rolling bearing includes a single outer ring, a first inner ring providing a distal seat, a second inner ring fitted onto the seat and held in axial abutment against the first inner ring. The inner surface of the first inner ring includes a shoulder for assembly to a blade root. The outer surface of the single outer ring includes a shoulder for assembly to a housing.

The invention relates to a device (14) for securing a clamping element against unintentional release, with a disk-shaped structure (15) that is penetrated in an axial manner by a bore hole (16). Thereby, the structure (15) is provided for an inner diameter with a driving profile (17) defined by the bore hole (16), which, in the placement of the structure (15), engages with the bore hole (16) on a radially inner component in a profile provided on the part of such component and thereby establishes a torque-proof coupling of the structure (15) with this component. In addition, the structure (15) is provided, in an axial manner on both sides, with contact surfaces (18, 19) that run in a radial manner. In order to provide a device that can be mounted on a radially inner component in a manner that is as free of backlash as possible and with low expenses, a profile plane (22) of the driving profile (17) is tilted at an angle () with respect to radial planes (20, 21) of the contact surfaces (18, 19).