Sealing unit for a wheel hub group for vehicles that is provided with a roller bearing interposed between a rotary hub for a wheel of the vehicle, and a stationary pin of an upright of said vehicle, the sealing unit in turn comprising an annular pre-cavity arranged in an axially frontal position of the roller bearing, a dynamic portion in rotation about an axis when in use, and a static portion cooperating with the dynamic portion to protect the roller bearing from external contaminants, the dynamic portion having a centrifuging surface formed on a free end of the hub and the static portion in turn having a stationary screen that is fitted onto the support pin inside the pre-cavity and that has a centrifuging section facing the centrifuging surface to facilitate expulsion and drainage of contaminants out of the annular pre-cavity.

A centrifugal separator is configured for processing a product by separating a relatively, heavy component and a relatively light component therefrom. The centrifugal separator includes a spindle supported by a stationary frame, A drive unit acts on a rotating member mounted on the spindle to rotate the spindle. A centrifuge rotor mounted to the spindle encloses a separation space. An upper bearing housing is mounted to the stationary frame and supports bearings including an outer bearing ring attached to the upper bearing housing and an inner bearing ring attached to the spindle. The upper bearing housing is mounted to the stationary frame via an elastic member permitting the upper bearing housing and the spindle to move radially, and via an upper tilting member permitting the spindle to tilt during operation of the centrifugal separator.

In a housing that supports a rotating shaft via a rolling bearing which is subjected to predetermined position precompression, a wedge member, the radial thickness of which increases from the leading end towards the base end thereof, is inserted between the housing and the outer circumferential surface of the outer race of the rolling bearing and between the rotating shaft and the inner circumferential surface of an inner race of the rolling bearing, the wedge member being inserted from the leading end thereof along the radial direction of the rotating shaft. The wedge member is fixed by being fastened, ahead in the insertion direction, by bolts and nuts, so that precompression force along with predetermined position precompression is imparted to the rolling bearing.

A bearing member for supporting a rotatable axle includes a bearing housing; at least one bearing inserted into the bearing housing, wherein the bearing is configured to receive a rotatable shaft extending through the bearing; and a tilting member arranged around the bearing housing. The tilting member includes a pack of annular discs forming a through hole for receiving the bearing housing, wherein each of the annular discs includes a plurality of apertures extending through each of the discs and wherein the tilting member further includes a sleeve element provided in each of the apertures for holding the annular discs together as a stack and for receiving a fastener for attaching the tilting member to the bearing housing or said stationary machine element. The bearing member further includes at least one fastening element extending through a sleeve of the tilting member and attaching the tilting member to the bearing housing.

A propeller blade comprises a fibre reinforced blade structure spar having a blade retention section formed at one end thereof, and at least one metallic formation spray deposited onto said blade retention section.

The present disclosure relates to pinion assembly preloading systems and methods of operation. Disclosed are systems including a press actuator that applies an axial force against a pinion assembly; a force sensor that measures a reaction force at the pinion assembly; and a method of controlling the press actuator according to a change in the reaction force.

A pulley device provides a pulley and a bearing. The pulley has at least one C-shaped pulley part having an inner portion mounted on the bearing, an outer portion having an outer cylindrical surface dedicated to interact with a belt or a chain, and an intermediate portion extending substantially radially between axial ends of inner and outer portions on one axial side of pulley device. The outer cylindrical surface of outer ring is provided with at least one material deformation forming an axial stop for the pulley.

A slew bearing that includes an inner ring. The slew bearing also includes a first outer ring positioned about a first portion of the inner ring. The slew bearing also includes a second outer ring operably engaged with the first outer ring, wherein the second outer ring is positioned about a second portion of the inner ring opposite to the first outer ring. The slew bearing also includes at least one set of ball operably engaged with the inner ring and one or both of the first outer ring and the second outer ring. The inner ring of the slew bearing is configured to rotate about the first outer ring and the second outer ring.

The present disclosure is directed to methods for manufacturing a wind turbine slewing ring bearing having an integral stiffener configured to resist deformation of the bearing under a load. More specifically, the present disclosure is directed to methods for manufacturing components of a slewing ring bearing (e.g., an inner, center, and outer race) using near-net-shape (NNS) ring rolling techniques. In particular, the present disclosure is directed to methods for manufacturing slewing ring bearing races, via NNS ring rolling, that are not restricted to conventional (e.g., generally square, rectangular, quadrilateral, trapezoid, quadrilateral) cross-sectional profiles that necessitate attachment of a separate, non-integral stiffener (e.g., a non-integral stiffening plate, stiffening ring, or stiffening assembly).

A transmission unit includes a transmission housing, a transmission element rotatably accommodated in the transmission housing, a bearing seat, and an angular contact ball bearing accommodated in the bearing seat, for mounting the transmission element, as well as a double-row angular contact ball bearing having: an inner bearing ring; an outer bearing ring; a first ball-cage assembly with first balls which are accommodated in a first track space extending between a first inner rolling element raceway of the inner bearing ring and a first outer rolling element raceway of the outer bearing ring; and a second ball-cage assembly with second balls which are accommodated in a second track space extending between a second inner rolling element track of the inner bearing ring and a second outer rolling element track of the outer bearing ring.