Abstract: A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft.

Abstract: A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft.

Abstract: A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft.

Abstract: A wind turbine rotor shaft arrangement, e.g. of horizontal type, comprising a rotor shaft for supporting wind turbine blades, a non-rotating first housing structure for supporting the rotor shaft, and a first rolling bearing arranged to support, in a first axial direction, the rotor shaft in relation to the first housing structure at a first support point. The first rolling bearing is a single row self-aligning bearing comprising an inner ring, an outer ring, and a set of rolling elements formed of rollers arranged in an intermediate configuration between the inner and outer rings. Each roller is a symmetrical bearing roller having a curved raceway-contacting surface arranged contacting a curved inner raceway of the inner ring and a curved outer raceway of the outer ring. A contact angle between each roller and the inner and/or outer raceway is inclined in relation to the radial direction of the rotor shaft.

Abstract: The invention is a method of mounting a rolling bearing onto a wind turbine rotor shaft, wherein the bearing includes an outer ring, an inner ring and rolling elements disposed between the rings, and wherein the inner ring provides an inner circumferential surface, having a frustoconical profile. The rolling bearing is mounted on a corresponding conical seat on the rotor shaft by the frustoconical inner circumferential surface. The method includes: pressing a liquid in-between the inner circumferential surface of the inner ring and the conical seat to facilitate the driving up of the rolling bearing on the conical seat, driving up the rolling bearing on the conical seat by an axial force acting on the rolling bearing, wherein the liquid is pressed in-between the two surfaces at an axial end portion of the inner circumferential surface. Furthermore, the invention regards a bearing assembly.

Abstract: A wind turbine rotor shaft arrangement comprising a rotor shaft, a first support structure for supporting the rotor shaft, and a first rolling bearing arranged to support the rotor shaft in relation to the first support structure. The first rolling bearing comprises an inner ring, an outer ring, a set of rolling elements, and an attachment portion for securing the inner ring. The attachment portion comprises an radially outer support surface, wherein the radially outer support surface of the attachment portion is expanded radially outwards for securing the inner ring by an expansion member being driven into the attachment portion. A method for manufacturing a wind turbine rotor shaft arrangement.

Abstract: The present invention refers to a mounting sleeve (1) for mounting a ring having a tapering inner bore on a cylindrical shaft, wherein the mounting sleeve has a cylindrical inner envelope surface, wherein the inner surface of the mounting sleeve has an increased friction coefficient, for giving an increased ability to the mounting sleeve to transfer axial load, without sliding along the surface of the shaft.

Abstract: A bearing (4) includes an outer ring (6), rolling elements (5) and a two-part inner ring (A). The two-part inner ring (A) includes a first part (1) having a radially outer surface (11) and an inner bore (12). Furthermore, the two-part inner ring (A) includes a second part (2) having a radially inner surface (21) and at least one raceway (22) for rolling elements. The radially outer surface (11) of the first part (1) essentially matches the radially inner surface (21) of the second part (2). A cavity (3), which in use acts as a pressure chamber, is located between the first and second parts (1, 2). When pressurizing the cavity (3), a relative axial movement between the first and second parts (1, 2) is accomplished.

Abstract: The present invention refers to a mounting sleeve (1) for mounting a ring having a tapering inner bore on a cylindrical shaft, wherein the mounting sleeve has a cylindrical inner envelope surface, wherein the inner surface of the mounting sleeve has an increased friction coefficient, for giving an increased ability to the mounting sleeve to transfer axial load, without sliding along the surface of the shaft.

Abstract: The invention comprises a bearing (4) and its methods for mounting, dismounting and adjusting a bearing clearance. The bearing (4) comprises an outer ring (6), rolling elements (5) and a two-part inner ring (A). The two-part inner ring (A) comprises a first part (1) having a radially outer surface (11) and an inner bore (12). Furthermore, the two-part inner ring (A) comprises a second part (2) having a radially inner surface (21) and at least one raceway (22) for rolling elements. The radially outer surface (11) of the first part (1) essentially matches the radially inner surface (21) of the second part (2). A cavity (3), which in use acts as a pressure chamber, is located between the first and second parts (1, 2). When pressurizing the cavity (3), a relative axial movement between the first and second parts (1, 2) is accomplished.