A dust seal for sealing a gap between an opening and a shaft inserted through the opening includes a dust seal body in an annular shape and a bushing in an annular shape. The shaft is slidably inserted through the bushing. The dust seal body includes an attaching portion, a first accordion unit, and a second accordion unit. The first accordion unit and the second accordion unit are arranged side by side in a direction of an axis. The first accordion unit is integral with the attaching portion, is joined to the attaching portion at an outer periphery, and is fixed to the bushing at an inner periphery. The second accordion unit is fixed to the attaching portion at the outer periphery, and locked to the bushing at the inner periphery.

A dust seal includes an annular dust seal body, an annular bushing through which a shaft is slidably inserted, and an annular seal lip provided on the bushing and slidably contacting the shaft. The dust seal body includes an annular elastic attaching portion that is fitted into an opening of a receiving portion, an annular first accordion unit having an elastic accordion, and an annular second accordion unit having an elastic accordion. The first accordion unit and the second accordion unit are arranged side by side in the direction of an axis. The first accordion unit is integral with the attaching portion, is joined to the attaching portion at an outer periphery, and is bonded to the bushing at an inner periphery by vulcanization. The second accordion unit is fixed to the attaching portion at an outer periphery, and engaged with the bushing at an inner periphery.

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 wheel assembly is configured for use with a system for conditioning air to be supplied to an enclosed structure. The rotary wheel is configured to be positioned within a supply air stream and an exhaust air stream. The assembly includes a cassette frame, a wheel rotatably secured within the cassette frame, and a self-adjusting seal subassembly configured to maintain sealing engagement with respect to a surface of the wheel. The self-adjusting seal subassembly includes at least one seal member.

A rotary wheel assembly is configured for use with a system for conditioning air to be supplied to an enclosed structure. The rotary wheel is configured to be positioned within a supply air stream and an exhaust air stream. The assembly includes a cassette frame, a wheel rotatably secured within the cassette frame, and a self-adjusting seal subassembly configured to maintain sealing engagement with respect to a surface of the wheel. The self-adjusting seal subassembly includes at least one seal member.

A sealing device includes: a sealing device main body to be attached to an outer periphery side member; and a slinger to be attached to an inner periphery side member. The sealing device main body includes: an annular reinforcement ring centered on an axis; and an annular elastic body part that is made of an elastic body attached to the reinforcement ring and is centered on the axis. A through hole that passes through a portion between an internal space side surface and an atmosphere side surface of the reinforcement ring is formed in the reinforcement ring, and a positioning part for fixing the position of the reinforcement ring at the time of vulcanization is formed on an internal space side surface of the elastic body part. In the sealing device, the through hole and the positioning part are formed at positions separated in the radial direction.

A sealing device in which damage on a resin seal by a plate spring can be suppressed is provided. The sealing device includes a metal ring 110, a resin seal 120 which is deformed on the radially inward side to be curved toward a sealed-region side and, in this state, slidably in close contact with an outer surface of a shaft 200, and a plate spring 130 which presses a radially inward side of the resin seal 120 radially inward, wherein, a bent portion 133 in which a part of a distal end of the plate spring 130 on the radially inward side is bent in advance so that the distal end of the plate spring 130 on the radially inward side is separated from the outer surface of the resin seal 120 in a state where the shaft 200 is inserted.

A sealing device in which damage on a resin seal by a plate spring can be suppressed is provided. The sealing device includes a metal ring 110, a resin seal 120 which is deformed on the radially inward side to be curved toward a sealed-region side and, in this state, slidably in close contact with an outer surface of a shaft 200, and a plate spring 130 which presses a radially inward side of the resin seal 120 radially inward, wherein, a bent portion 133 in which a part of a distal end of the plate spring 130 on the radially inward side is bent in advance so that the distal end of the plate spring 130 on the radially inward side is separated from the outer surface of the resin seal 120 in a state where the shaft 200 is inserted.

A sealing device includes a mounted part to be mounted to the inner peripheral surface of the shaft hole, a cylindrical part disposed radially inside the mounted part, a seal lip portion extending from the cylindrical part and in contact with the outer peripheral surface of the rotational shaft, a bellows part connecting the mounted part and the cylindrical part, and an annular sliding member made of a resin and disposed radially inside the cylindrical part, the outer peripheral surface of the rotational shaft being slidable on the annular sliding member.

A sealing device includes a mounted part to be mounted to the inner peripheral surface of the shaft hole, a cylindrical part disposed radially inside the mounted part, a seal lip portion extending from the cylindrical part and in contact with the outer peripheral surface of the rotational shaft, a bellows part connecting the mounted part and the cylindrical part, and an annular sliding member made of a resin and disposed radially inside the cylindrical part, the outer peripheral surface of the rotational shaft being slidable on the annular sliding member.