A bearing cage includes an annular body disposeable between inner and outer rings and having first and second axial ends, inner and outer circumferential surfaces, and a plurality of pockets for retaining rolling elements. The cage includes at least one channel extending axially through the annular body and having a first opening at the first axial end and a second opening at the second axial end. The channel(s) are each configured to direct liquid to flow axially through the bearing when the cage rotates about the centerline. Alternatively or additionally, the cage includes at least one elongated projection extending radially inwardly from the inner circumferential surface or radially outwardly from the outer circumferential surface and extending axially between the first axial end and the second axial end. The projection(s) are each configured to direct liquid to flow axially through the bearing when the cage rotates about the centerline.

A guide carriage (1) of a linear guide includes a circulation channel (8) for rolling bodies (2), which is formed from a load section (3), two deflection sections (5) and a return section (4). A valve (16) arranged in a lubricant channel (10) to prevent the back flow of lubricant from the circulation channel (8) is arranged at a supply point (13) for supplying lubricating agent to one of the deflection sections (5), and the deflection section (5) is delimited by a deflection shell (9) located in an end piece (7). The valve (16) is formed integrally with at least one of the elements deflection shell (9) and end piece (7).

The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

The present disclosure provides a bearing cage and a bearing. The bearing cage comprising: a generally annular backbone portion having a front side and an opposite back side; a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage, the cantilever portions being arranged along a circumference of the annular backbone portion, defining a plurality of pockets bearing, wherein the backbone portion has a radial thickness which is larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions comprises two prong portions and a connection portion between the two prong portions. The bearing cage further comprises one or more of: a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.

The present disclosure provides a bearing cage and a bearing. The bearing cage comprising: a generally annular backbone portion having a front side and an opposite back side; a plurality of cantilever portions extending from the front side of the backbone portion in an axially forward direction of the bearing cage, the cantilever portions being arranged along a circumference of the annular backbone portion, defining a plurality of pockets bearing, wherein the backbone portion has a radial thickness which is larger than that of the plurality of cantilever portions. Each of the plurality of cantilever portions comprises two prong portions and a connection portion between the two prong portions. The bearing cage further comprises one or more of: a plurality of recesses formed in a radially outer side of the cantilever portions, and a plurality of grooves formed in the radially inner side of the bearing cage.

The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

A rolling bearing unit provided with a radially outer ring having an assembly groove, two radially inner rings, two series of rolling elements interposed between the radially outer ring and the radially inner rings and defining between them a first internal grease reservoir. The groove is arranged in an axially intermediate position with respect to the two radially inner rings and a grease dispensing device is housed inside the groove of the radially outer ring and is in turn provided with a second grease reservoir formed inside the radially outer ring and communicating with the first reservoir via the groove. A permeable retaining wall housed is inside the groove so as to retain the grease inside the second reservoir and allow it to flow out towards the first reservoir during operation of the bearing unit, dispensing it in a controlled manner.

A roller and cage assembly includes: a cage (12) including a pair of rings (11) and a plurality of cage bars (21) extending in an axial direction and connecting the rings (11) to each other; and rollers disposed in pockets between the cage bars (21, 21) adjacent to each other in a circumferential direction. The cage bar (21) includes an end portion (22) and a middle portion located radially inward from the end portion (22). The end portion (22) has an outer retaining protrusion (25) formed therein, the outer retaining protrusion protruding into the pocket and configured to contact the roller to restrict radially outer movement of the roller. The end portion (22) of the cage bar (21) has an oil groove (31) in an inner peripheral surface (26) thereof, the oil groove extending in the circumferential direction and connecting to the outer retaining protrusion (25).

A bearing includes an outer ring, an inner ring provided on the inner side in the radial direction of the outer ring, a rolling body provided between the outer ring and the inner ring, and a holder including a base formed in an annular shape around a center axis of the outer ring and the inner ring and a first wall section and a second wall section provided to project from the base, the holder holding the rolling body. The first wall section includes a first channel provided in the circumferential direction of the base. The second wall section includes a second channel provided in the circumferential direction of the base. The position of the first channel in the first wall section and the position of the second channel in the second wall section are different.

A retention system for a bearing member includes a sleeve member and a retention member. The retention system includes an inner shoulder adapted to limit movement of the bearing member in at least one of a first axial direction and a second axial direction relative to the bore. The retention system includes an outer shoulder adapted to limit movement of at least one of the sleeve member and the retention member in at least one of the first axial direction and the second axial direction relative to the bore. The retention system includes a plurality of fasteners adapted to limit movement of each of the sleeve member and the retention member in at least one of the first axial direction and the second axial direction relative to the bore. Each of the sleeve member and the retention member is adapted to limit contact of the bearing member with the bore.