A motor includes a rotor, a stator, a bearing, a motor housing, and a sealing member. The rotor includes a shaft. The stator faces the rotor in a radial direction. The bearing supports the rotor such that the rotor is able to rotate about the central axis. The motor housing surrounds at least a part of the stator. The sealing member includes a tubular part and a cover part. The tubular part extends in the axial direction and has an inner surface that faces an outer surface of the shaft in the radial direction with a gap interposed therebetween in the radial direction. The cover part extends inward from an inner surface of the tubular part in the radial direction. The cover part has a through-hole that penetrates therethrough in the axial direction on an inner side from an outer end of the shaft in the radial direction.

Disclosed herein is a motor including a bearing in which a rolling member is disposed between an inner ring and an outer ring, a spring connected to the outer ring, and a pusher connected to the spring to be retracted to a first position spaced apart from the inner ring by the spring, and to be advanced to a second position at which friction with the inner ring is caused by a pressure of air acting on a pressure surface when the pressure surface on which the pressure of air flowing by the impeller acts is formed, wherein the inner ring is spaced apart from the rotating shaft by a gap formed between the inner ring and the rotating shaft when the pusher is at the second position.

A motor includes a rotor including a shaft that is disposed along a central axis extending vertically, a stator disposed to face the rotor in a radial direction, a first bearing that is disposed above the stator and supports the rotor so as to be rotatable about the central axis with respect to the stator, and a motor housing that houses at least a portion of the stator. The motor housing includes a first cylindrical portion that is disposed radially outward of the first bearing, extends downward, and has a cylindrical shape, a first top plate portion that extends radially inward from a lower end of the first cylindrical portion, and a second cylindrical portion that extends downward from a radially inner end of the first top plate portion and includes a cylindrical shape. The radially inner surface of the second cylindrical portion is positioned such that a gap is defined between the radially inner surface of the second cylindrical portion and the radially outer surface of the shaft in the radial direction.

In a method for producing a subassembly for a household appliance, at least one of a first rail and a separate second rail is cleaned by a mechanical and/or chemical cleaning operation. Subsequently the first and second rails are connected to one another so as to be able to slide relative to one another and thereby form a rail withdrawal device of the subassembly.

A grinding device includes: first and second grinding elements, the first grinding element being rotatable relative to the second grinding element around a rotary axis for grinding coffee beans between the grinding elements into a powder; a carrier wheel rotatable around the rotary axis for conveying powder on the carrier wheel to an outflow channel to output the powder; a housing surrounding the grinding elements and the carrier wheel and including the outflow channel, the second grinding element being stationary relative to the housing, a rolling bearing with inner and outer rings and rolling elements therebetween, the outer ring being stationary on the housing and the first grinding element, the carrier wheel and the inner ring being rotatable around the rotary axis together. An annular seal ring seals an intermediate region above the outer ring around the rotary axis between the carrier wheel and the outer ring.

A roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

A laundry treatment apparatus includes a case, a tub configured to accommodate washing water, a drum installed inside the tub and configured to accommodate laundry, a pulsator installed inside the drum and configured to rotate by receiving driving force, and a driver configured to provide driving force for rotating the drum and the pulsator. The driver includes a driving motor including a stator and a rotor, a bearing housing installed at a lower portion of the tub, a dewatering shaft having a lower end disposed adjacent to the rotor and an upper end connected to the drum, a coupler configured to selectively connect the dewatering shaft to the rotor while lifting along an outer circumferential surface of the lower end of the dewatering shaft, a washing shaft positioned inside the dewatering shaft, and an anti-friction member inserted between the dewatering shaft and the washing shaft.

A sealing system includes a casing with an internal seat, a front edge, an opening, and a radially external lateral surface defining an annular seat. The annular seat includes an annular groove axially spaced from the front edge, itself including one or more mechanical stops, and a plurality of axial grooves connected to the annular groove and interrupting radially at least part of the front edge. The annular groove defines a bottom wall provided with projections spaced from one another and defining depressions, the projections circumferentially offset from the axial grooves. The sealing system further includes a cover with a bottom wall and an annular coupling portion. A radially inner surface of the annular coupling portion includes teeth projecting radially inward and spaced circumferentially from each other. The annular seat is configured to receive the at least one pair of teeth of the annular coupling portion of the cover.

A fan motor includes: a motor body; a rotary shaft assembly having a rotor and a bearing mounted on a rotary shaft; a stator that surrounds the rotor; an impeller connected to the rotary shaft; and a bracket including a bearing housing portion for receiving the bearing. The bearing housing portion defines a bearing heat dissipating flow path that allows air to be discharged to an outside of the bearing housing portion after passing between the outer surface of the bearing and the bearing housing portion. Air blown from the impeller can absorb heat of the bearing by contacting an outer surface of the bearing while passing through the bearing heat dissipating flow path.

An idler end for a roller tube of a roller blind. The idler end includes a housing having a bore therethrough, an internal partition and a generally cylindrical passageway extending through said partition. The passageway has an internal first should for engagement with a fastener. The idler end includes a shaft having (i) a pin portion for engagement with the roller blind, (ii) a receiver configured to pass through the passageway and for engagement with said fastener, and (iii) a second shoulder between the pin portion and the receiver end, and a biasing member configured to longitudinally bias said pin portion away from said housing. The idler end further includes a ring member surrounding said shaft positioned between said second shoulder and said biasing member, the ring member reducing the generation of noise created through rotational movement of said biasing member relative to said second shoulder.