Provided are a ball joint and a dust cover of which a seal part can be prevented from being impacted due to great swings of a ball stud. A dust cover 100 includes a deformable body part 110, a fixed part 120 provided to the body part 110 on one end side and fixed to the socket 200, and a seal part 130 provided to the body part 110 on another end side, the seal part 130 has an elastic body part provided integrally with the body part 110 and having an inner peripheral seal part 131 which is configured to slide on the outer peripheral surface of the shaft 310 and a reinforcement ring 150 embedded in the elastic body part, and a tip end surface of the reinforcement ring 150 on a knuckle 400 side is at least partly exposed from the elastic body part and is in contact with the knuckle 400.

A sealing system includes a shaft seal plate, a seal guide having a tab, and a shaft seal coupled to the seal guide. A guide slot is formed in the shaft seal plate, and the tab extends into the guide slot. The shaft seal is configured to form and substantially maintain a seal at an axle bar as the axle bar rotates and pivots. The seal guide is configured to translate relative to the shaft seal plate as the axle bar pivots, and the tab is configured to block a rotation of the seal guide and the shaft seal relative to the shaft seal plate as the axle bar rotates.

A system for mixing content of a container comprises a container includes an interior mixing element, an exterior drive system and a mixing device comprising an exterior bearing for coupling the exterior drive system to the interior mixing element of the container. The exterior bearing provides a driven non-rotating, nutating motion that drives the interior mixing element of the container so that it performs a mixing motion inside the container.

A rotary valve seal for a coolant control valve is provided that offers improved sealing with a rotary valve body. The rotary valve seal includes a central axis, a cylindrical seal body, and a seal skeleton. The cylindrical seal body has a first stiffness and a first end that is configured with a radially outwardly extending flange. The seal skeleton, having a second stiffness and embedded within the cylindrical seal body, has a plurality of fingers circumferentially arranged within the flange. The second stiffness can be greater than the first stiffness. The plurality of fingers and flange can define alternating stiffness zones. The first end of the seal body and the flange define a bottom surface configured for sealing engagement with a rotary valve body. The rotary valve body can be shaped in the form of at least one spherical segment.

A boot for a constant velocity universal joint includes large- and small-diameter mounting portions to be mounted to an outer joint member and a shaft, respectively, with boot clamps, a bellows portion integrally coupling the large- and small-diameter mounting portions to each other, and a cylindrical shoulder portion formed at a bellows portion-side end of the large-diameter-side mounting portion, and connected to the bellows portion through two auxiliary crest portions and one auxiliary trough portion between the auxiliary crest portions. A radial distance between each of the auxiliary crest portions and the auxiliary trough portion is shorter than a radial distance between a crest portion and a trough portion. A diameter passing through a center of the radial distance between each of the auxiliary crest portions and the auxiliary trough portion is larger than a diameter of the cylindrical shoulder portion.

A boot includes a large-diameter tubular portion, a small-diameter tubular portion, and a bellows portion. The large-diameter tubular portion includes a fastening groove into which a fastening member is fitted, an opening end to which the bellows portion is coupled and into which an outer case is inserted, at least one seal lip having an annular shape and protruding from an inner circumferential surface of the large-diameter tubular portion at the position where the fastening groove is projected to the inside in the radial direction, so as to be continuous over the entire circumference, and a protrusion protruding from the inner circumferential surface on the opening end side with respect to the seal lip so as to be provided over the entire circumference. A height of the protrusion is set to be smaller than a height of the seal lip.

A boot for a constant velocity universal joint includes large- and small-diameter mounting portions to be mounted to an outer joint member and a shaft, respectively, with boot clamps, a bellows portion integrally coupling the large- and small-diameter mounting portions to each other, and a cylindrical shoulder portion formed at a bellows portion-side end of the large-diameter-side mounting portion, and connected to the bellows portion through two auxiliary crest portions and one auxiliary trough portion between the auxiliary crest portions. A radial distance between each of the auxiliary crest portions and the auxiliary trough portion is shorter than a radial distance between a crest portion and a trough portion. A diameter passing through a center of the radial distance between each of the auxiliary crest portions and the auxiliary trough portion is larger than a diameter of the cylindrical shoulder portion.

A sealing system includes a shaft seal plate, a seal guide having a tab, and a shaft seal coupled to the seal guide. A guide slot is formed in the shaft seal plate, and the tab extends into the guide slot. The shaft seal is configured to form and substantially maintain a seal at an axle bar as the axle bar rotates and pivots. The seal guide is configured to translate relative to the shaft seal plate as the axle bar pivots, and the tab is configured to block a rotation of the seal guide and the shaft seal relative to the shaft seal plate as the axle bar rotates.

A rotary feedthrough includes a first shaft connected to a first gear via a coupling and a second shaft configured to be mounted in a housing and fixedly connected to a second gear. One of the first gear and the second gear is an external gear with i teeth and the other of the first gear and the second gear is an internal gear with i+x teeth, where i=3, 4 . . . n and x=1, 2 . . . n. The external gear is arranged inside the internal gear. The rotary feedthrough further includes a coupling configured to couple a gear to the first shaft in such a way that a rotational movement of the shaft leads to an eccentric movement of the gear coupled thereto. In addition, the rotary feedthrough includes a seal configured to connect the gear coupled to the first shaft to the housing.

A lawn mower includes a driving source mounting portion formed in a traveling frame, a driving source mounted in the driving source mounting portion, and a lawn mowing unit attached to the driving source. A bottom surface of the traveling frame includes a frame-side seal surface surrounding the lower end of the driving source mounting portion, and a lawn mowing unit peripheral surface surrounding the frame-side seal surface. A waterproof member is in tight contact with the frame-side seal surface. The lawn mowing unit peripheral surface is formed over a range from an outer circumferential edge of the frame-side seal surface to an outer circumferential edge of the lawn mowing unit. A boundary between the frame-side seal surface and lawn mowing unit peripheral surface is formed into the shape of a step.