A three-rows-of-ball bearings sliding rail is disclosed. An inner sliding rail body is supported in outer sliding rail bodies through three rows of support ball bearings which are arranged in parallel in a lengthwise direction of the inner sliding rail body. The three rows of support ball bearings are respectively limited within a length range of the outer sliding rail bodies via ball retainers. Each of the outer sliding rail bodies includes a bottom plate, a first side wall and a second side wall which are respectively located at two sides in a widthwise direction of the bottom plate, are integrally formed with the bottom plate and extended in a lengthwise direction of the bottom plate. The first side wall includes a first arm and a supporting part which is bent inwardly and extends horizontally from a bottom end of the first arm.

An operating device includes: an operating member operable by a user; a rotation shaft having an end portion provided with the operating member; a first bearing supporting a first portion of the rotation shaft; and a second bearing supporting a second portion of the rotation shaft. The second portion is located nearer to the operating member than the first portion in an axial direction of the rotation shaft.

A washing machine includes a casing, an outer tub, an inner tub, a pulsator, and a driving mechanism configured to cause rotation of at least one of the inner tub or the pulsator. The driving mechanism includes a drive motor including a stator and a rotor, a bearing housing located below the outer tub, a hollow spinning shaft coupled to the inner tub, a coupler configured to selectively connect the spinning shaft to the rotor based on moving upward and downward along an outer circumferential surface of the spinning shaft, a washing shaft located in the spinning shaft and configured to rotate the pulsator, where the washing shaft has a lower part connected to the rotor and an upper part connected to the pulsator, and an anti-friction member located between the spinning shaft and the washing shaft and configured to reduce friction between the spinning shaft and the washing shaft.

A mixing machine includes a mixer body, a head extending from the mixer body and including a rotatable output member for receiving a mixer tool and a bowl support mounted to the mixer body and positioned below the head. A slideway system is configured to enable vertical movement of the bowl support along the mixer body between a lowered position away from the head and a raised position toward the head. The slideway system includes a first metal surface, a second metal surface opposed to and facing the first metal surface, wherein a relative sliding movement between the first metal surface and the second metal surface occurs during vertical movement of the bowl support, and an ultra-high-molecular-weight plastic insert disposed between the first metal surface and the second metal surface to limit friction during the relative sliding movement.

A rolling element cage for a linear guide system includes two receiving portions and a connecting portion connecting the two receiving portions, wherein each of the two receiving portions includes two extended top surfaces. The two receiving portions each include a plurality of apertures. Each aperture includes a side surface connecting the two top surfaces. At least one of a plurality of bearing rolling elements is receivable in each of the plurality of apertures of the rolling element cage, so that the side surface of the aperture or a transition between one of the two top surfaces and the side surface can be brought into contact with a rolling element surface of the bearing rolling element which is receivable in the aperture. The transition between one of the two top surfaces and the side surface includes, at least in sections, a broken edge, an edge including a chamfer or a rounding.

An article of manufacture for providing a lint roller assembly is disclosed. The lint roller assembly includes a handle having an opening to couple to a shaft component, a roller barrel having a shaft opening running lengthwise through the center of the roller barrel and a pair of bearing cavities at each end, the shaft component having a threaded end and an opposite end having a threaded retaining hole, and a pair of bearing components having an outer edge and an inner edge. The roller barrel being configured to retain a roll of adhesive material about the outer surface. The outer edge being coupled to the bearing cavities and the inner edge engaging the shaft component to permit the roller barrel to rotate about the shaft component.

A motor includes a rotor that includes a shaft disposed along a central axis extending vertically, a stator that faces the rotor in a radial direction, a bearing section that supports the rotor such that the rotor is rotatable with respect to the stator, and a bracket that holds the bearing section. The bracket includes a cylindrical bracket portion that is disposed outwardly of the bearing section in the radial direction, and a bracket bottom portion that includes a bracket opening portion. The bearing section includes a bearing that rotatably supports the shaft, and a plate portion disposed below the bearing and extending in a direction orthogonal to the central axis. At least a portion of the plate portion faces the bracket opening portion in an axial direction.

A slide mechanism for use in elevation device comprises: a support seat, longitudinally disposed with at least three wing pieces spaced from each other, wherein at least one lateral surface of each of the wing pieces is respectively and longitudinally pivoted with at least one roller, one of the wing pieces is extended with a neck part having a front end disposed with a connection arm; and a sleeve, having a circumference defined at the top end longitudinally formed with a rail slot, wherein an inner circumference thereof is longitudinally formed with a positioning slot at a location corresponding to the at least one rollers and allowing a guide rail to be disposed and positioned, an outer circumference of each of the rollers is formed with a guide slot sleeved in the guide rail, so that the rollers can be respectively and longitudinally slid along the corresponding guide rail.

A slide mechanism for use in elevation device comprises: a support seat, longitudinally disposed with at least three wing pieces spaced from each other, wherein at least one lateral surface of each of the wing pieces is respectively and longitudinally pivoted with at least one roller, one of the wing pieces is extended with a neck part having a front end disposed with a connection arm; and a sleeve, having a circumference defined at the top end longitudinally formed with a rail slot, wherein an inner circumference thereof is longitudinally formed with a positioning slot at a location corresponding to the at least one rollers and allowing a guide rail to be disposed and positioned, an outer circumference of each of the rollers is formed with a guide slot sleeved in the guide rail, so that the rollers can be respectively and longitudinally slid along the corresponding guide rail.

Provided in one embodiment of the present invention is a bearing assembly comprising: an outer ring in which a hollow is formed and which has a protrusion protruding toward a central direction along the inner circumferential surface and a first ball contact portion and a second ball contact portion that are formed by the protrusion; an inner ring having a third ball contact portion on the outer circumferential surface and forming a first track portion and a second track portion by being inserted into the hollow; and at least one bearing ball disposed between the outer ring and the inner ring to rotatably connect the outer ring and the inner ring, wherein the bearing balls are arranged in multiple rows in the first track portion and the second track portion and are configured to contact each of the ball contact portions.