The present invention provides an annular roller device for a sliding window/door, which is proposed as a roller device having a new structure wherein the roller device installed under a door sash can move a sliding window/door having heavy weight, and can maximize the open glass portion of the window/door by minimizing the height of the space required to install the roller device, thereby providing a more open view. The roller device has a structure in which, even when a rail installed on a window frame is not horizontal or the bottom portion of a window is not completely flat, all multiple rolling members, which constitute a ring-shaped rolling unit wound around a load-bearing plate (1220) comprising segment bodies (1221, 1222) rotatably connected to each other by a pivot pin (1225) extending therethrough, form contact points with the rail or the bottom portion, and thus each of the rolling members is prevented from being loaded with excessive weight.

The invention relates to a vehicle seat with a roller guide, wherein the roller guide has at least one at least partially laterally open guide rail and at least one running roller rolling in the guide rail and connected to parts of the vehicle seat by means of at least one axle, wherein the guide rail comprises a roller bottom-side inner wall arranged parallel to a central axis of the running roller, extending parallel thereto a roller top-side inner wall and a roller outer-side inner wall arranged perpendicularly to the central axis, wherein at least one lower transition inner wall is arranged between the roller bottom-side inner wall and the roller outer-side inner wall and at least one upper transition inner wall is arranged between the roller top-side inner wall and the roller outer-side inner wall, wherein the transition inner walls are configured free from a right-angled portion and in directions from the roller top-side inner wall and the roller bottom-side inner wall towards the roller outer-side inner wall are configured with a continuously reducing spacing from the central axis of the running roller, wherein on an axial loading of the roller guide in the direction of the central axis of the running roller, a lower portion of an outer end portion at a first end of the running roller configured to face the roller outer-side inner wall lies with contact against the lower transition inner wall.

The present invention provides an annular roller device for a sliding window/door, which is proposed as a roller device having a new structure wherein the roller device installed under a door sash can move a sliding window/door having heavy weight, and can maximize the open glass portion of the window/door by minimizing the height of the space required to install the roller device, thereby providing a more open view. The roller device has a structure in which, even when a rail installed on a window frame is not horizontal or the bottom portion of a window is not completely flat, all multiple rolling members, which constitute a ring-shaped rolling unit wound around a load-bearing plate (1220) comprising segment bodies (1221, 1222) rotatably connected to each other by a pivot pin (1225) extending therethrough, form contact points with the rail or the bottom portion, and thus each of the rolling members is prevented from being loaded with excessive weight.

A linear roller bearing having a rolling body circulating shoe (15) including end-arranged attachment elements (16) as a lubricating device, wherein each attachment element contains a volume (9) for storing lubricant and transferring lubricant to a rail that guides the circulating shoe. According to the invention, the attachment element is formed from an inner housing shell (8b), which lies against the head piece (4) of the support body (1) of the circulating shoe, and an outer housing shell (8a), which faces away from the support body, which housing shells can be fastened to the head piece of the support body by a central screw (17).

The present application relates to a field of bearing technology and relates to a recirculating roller bearing, including a front cover plate, a rear cover plate, an inner supporter, a sealing covering and a plurality of rolling carriers and at least one connector, in which the front cover plate and the rear cover plate are detachable connected on two sides of the inner supporter respectively; a circulating guiding path is defined by the front cover plate, the rear cover plate, the inner supporter and the sealing covering, the circulating guiding path includes a sealing portion and an opened load-bearing portion; the rolling carriers are filled in the circulating guiding path, each of the rolling carriers forms a rolling fit with the inner supporter, and each of the rolling carrier forms a rolling fit with a retractable fork when passing the opened load-bearing portion of the circulating guiding path.

The invention relates to a vehicle seat with a roller guide, wherein the roller guide has at least one at least partially laterally open guide rail and at least one running roller rolling in the guide rail and connected to parts of the vehicle seat by means of at least one axle, wherein the guide rail comprises a roller bottom-side inner wall arranged parallel to a central axis of the running roller, extending parallel thereto a roller top-side inner wall and a roller outer-side inner wall arranged perpendicularly to the central axis, wherein at least one lower transition inner wall is arranged between the roller bottom-side inner wall and the roller outer-side inner wall and at least one upper transition inner wall is arranged between the roller top-side inner wall and the roller outer-side inner wall, wherein the transition inner walls are configured free from a right-angled portion and in directions from the roller top-side inner wall and the roller bottom-side inner wall towards the roller outer-side inner wall are configured with a continuously reducing spacing from the central axis of the running roller, wherein on an axial loading of the roller guide in the direction of the central axis of the running roller, a lower portion of an outer end portion at a first end of the running roller configured to face the roller outer-side inner wall lies with contact against the lower transition inner wall.

A linear roller bearing having a rolling body circulating shoe (15) including end-arranged attachment elements (16) as a lubricating device, wherein each attachment element contains a volume (9) for storing lubricant and transferring lubricant to a rail that guides the circulating shoe. According to the invention, the attachment element is formed from an inner housing shell (8b), which lies against the head piece (4) of the support body (1) of the circulating shoe, and an outer housing shell (8a), which faces away from the support body, which housing shells can be fastened to the head piece of the support body by a central screw (17).

The present application relates to a field of bearing technology and relates to a recirculating roller bearing, including a front cover plate, a rear cover plate, an inner supporter, a sealing covering and a plurality of rolling carriers and at least one connector, in which the front cover plate and the rear cover plate are detachable connected on two sides of the inner supporter respectively; a circulating guiding path is defined by the front cover plate, the rear cover plate, the inner supporter and the sealing covering, the circulating guiding path includes a sealing portion and an opened load-bearing portion; the rolling carriers are filled in the circulating guiding path, each of the rolling carriers forms a rolling fit with the inner supporter, and each of the rolling carrier forms a rolling fit with a retractable fork when passing the opened load-bearing portion of the circulating guiding path.