A linear motion guide bearing 1 includes a rail 10, a slider 20, and a plurality of rolling elements. The slider 20 has formed therein a pair of circulation passages, which are spaces connecting one end and another end in each of a pair of load-carrying races, which are spaces between a pair of first rolling surfaces 41 and a pair of second rolling surfaces 42. In a cross section perpendicular to the longitudinal direction, the rail 10 includes a bottom wall portion 11, a first side wall portion 12, a second side wall portion 13, and a top wall portion 14. One first rolling surface 41 is made up of a wall surface 15A on an inner side of a first corner portion 15, which is a region where the second side wall portion 13 and the bottom wall portion 11 are connected. The other first rolling surface 41 is made up of a wall surface 16A on an inner side of a second corner portion 16, which is a region where the first side wall portion 12 and the top wall portion 14 are connected.

A slide member having a slide surface coated with a lacquer including a resin. The lacquer is in turn at least partly coated with a lipophilic composition coating. The lipophilic composition coating provides a slide layer on the slide member with low friction.

The present disclosure relates to an ultrasonic imaging apparatus that has a tolerance for easy assembly and reduces shaking and noise by reducing the tolerance after assembly. The ultrasonic imaging apparatus includes a main body, a probe connected to the main body to irradiate and receive ultrasonic waves and to transmit the ultrasonic signals to the main body, a control panel configured to control the main body or the probe, and a moving device configured to connect the control panel and the main body and to move the control panel with respect to the main body in the upward and downward directions, wherein the moving device includes a housing fixed to the main body, a moving member configured to be movable with respect to the housing in the upward and downward directions, and a regulating bearing installed in the housing and configured to assist the upward and downward movement of the moving member by coming into rolling contact with the moving member and to regulate a gap with the moving member.

An engagement assembly, a drawer, and a refrigerator having same. The engagement assembly comprises a first engagement part matching the drawer and a second engagement part matching a refrigerator body; one of the first and second engagement parts is a gear, and the other one is a rack; the rack has a tooth surface that allows the gear to travel; the rack comprises a main rack and an extension rack; when the drawer is in a closed state, the tooth surface has a first stroke length; when the drawer is in an opening process, the extension rack moves to a travel path of the gear so that the tooth surface has a second stroke length; when the drawer is in a closing process, the extension rack is reset; the first stroke length is smaller than the second stroke length. The length of the tooth surface increases in the opening process.

A sliding table assembly includes a sliding seat unit slidably mounted to a base unit. Two auxiliary sliding seats are slidably mounted to the base unit and disposed on two sides of the sliding seat unit. A connection member is connected between the auxiliary sliding seats. Two roller sets are respectively mounted to the auxiliary sliding seats. Each roller set has rollers to roll on the base unit. A driving screw rod is coupled to the sliding seat unit and embraced by the auxiliary seats. When the sliding unit is moved by the driving screw rod, it pushes the auxiliary sliding seats to slide together therewith.

A tripot housing and method of manufacture thereof. The tripot housing includes a housing body extending along an axis between a first end having an end wall and an open second end. A drive shaft extends from the end wall along the axis away from the second end. The housing body has an outer surface and an inner surface. The inner surface defines a guide channel that extends between the first end and the second end. The outer surface has a first region extending axially along a direction from the first end toward the second end to a shoulder that extends radially outwardly from the first region. The outer surface has a second region extending axially from the shoulder toward the second end. A ring has an inner surface disposed in an interference fit on first region and an outer surface extending radially outwardly from the second region.

The present application concerns a telescopic rail comprising a first rail element, at least one further rail element and at least one rolling body cage for positioning a plurality of rolling bodies between two rail elements, wherein the rolling body cage has at least two receiving limbs having a respective plurality of through openings, wherein the receiving limbs together have a cross-section partially enclosing an internal space, and a plurality of rolling bodies received in the through openings in the receiving limbs, wherein the rolling body cage is arranged with the rolling bodies between the first rail element and the further rail element. According to the invention it is proposed that such a telescopic rail be modified to such an effect that the telescopic rail has a first group of rolling bodies and the rolling bodies of the first group are made of graphite, wherein the telescopic rail has a second group of rolling bodies and the rolling bodies of the second group are made of a material which is of greater hardness than the graphite of the rolling bodies of the first group, and wherein at least two rolling bodies of the second group are respectively received in the through openings of at least two receiving limbs.

Various embodiments of the present disclosure are directed to, for example, a linear manipulator for a programmable stage installation. In one embodiment, the linear manipulator includes a body having an internal longitudinal channel extending parallel to an axis between two channel points, a power conductor positioned inside the channel, a drag band extending parallel to the axis, a motor that drives the drag band, and a wagon. The body further including a longitudinal opening extending between the two channel points, and a pair of rails connected to the body and extending parallel to the axis. The wagon including a pair of rail grippers for slidably engaging the pair of rails, a band connector connected to the drag band, and a power connector. The wagon attaches to equipment to be displaced along the linear manipulator and the power connector connects the equipment with the power conductor.

A roller carriage for displaceable linear guidance in a longitudinal direction on a rail element is disclosed. The roller carriage includes a carrier, a first roller or pair, a second roller or pair, and roller or pair. Every one of the first roller or pair, the second roller or pair, and the third roller or pair is mounted on the carrier such that each can rotate about a rotating axle. The rotating axles are substantially parallel to one another and the first roller or pair, the second roller or pair, and the third roller or pair are disposed on the roller carriage such that the first roller or pair can be brought into engagement with a first track of the rail element and the second roller or pair and the third roller or pair can be brought into engagement with a second track of the rail element. One of the first roller or pair, the second roller or pair, and the third roller or pair is mounted such that it can move in a transverse direction perpendicular to the longitudinal direction relative to the carrier, and wherein the movably mounted roller is resiliently pretensioned in transverse direction by a first spring element.

The present disclosure describes bearing assemblies for a mover of a linear motor system. The bearing assemblies may include a plurality of bearings, a housing that retains the bearings, a plurality of springs biasing at least one of the plurality of bearings towards a track of the linear motor system, and at least one dampening element dampening movement of one or more of the plurality of springs.