A retaining ring 1 for a shaft 2a usable with a bearing 3 having an outer ring 3a and an inner ring 3b fixed on the shaft, wherein the inner ring 3b and the outer ring 3a are rotatable relative to each other, and the retaining ring 1 is provided on the shaft 2a adjacent to the bearing 3 in a thrust direction to restrict a position of the bearing 3 in the thrust direction, the retaining ring 1 includes a protrusion 1a protruding in the thrust direction from a surface opposing the inner ring 3b in the thrust direction to contact the inner ring 3b so that the retaining ring 1 is out of contact from the outer ring 3a.

A transfer unit includes first and second rollers, a roller switching mechanism, and upstream-side and downstream-side guides. The second roller is arranged downstream of the first roller in the conveyance direction of the recording medium. The roller switching mechanism selectively arranges the first or second roller at a reference position to form a transfer nip. The upstream-side and downstream-side guides are respectively arranged upstream and downstream of the transfer nip in the conveyance direction of the recording member. When the first roller moves to the reference position by the roller switching mechanism, the second roller moves to a first retracted position behind the downstream-side guide, and when the second roller moves to the reference position by the roller switching mechanism, the first roller moves to a second retracted position behind the upstream-side guide.

According to one embodiment, a sheet conveying device includes a roller, a motor, a clutch, and a torque generator. The roller conveys a sheet. The motor is a driving source. The clutch connects or disconnects drive of the motor with respect to the roller. The torque generator applies a torque to the roller.

A film winding system is disclosed having a first winding station which is configured in a winding position to wind the film web into a film bale. A contact roller and a compensating roller are provided, wherein the contact roller is arranged adjacent to the first winding station in the winding position and is configured to guide the film web to the first winding station. The compensating roller is located before the contact roller in the direction of travel of the film web and is configured to guide the film web to the contact roller and to set a film tension. A first adjustment device is provided and configured to move the contact roller towards the winding station or away from the winding station, thereby enabling the setting of a specific contact pressure between the contact roller and the film bale. The first adjustment device comprises a slide system or an adjusting spindle.

A sheet conveyance device includes a conveyance roller having first and second end portions in a rotation axis direction, an open bearing supporting the first end portion, a frame supporting the open bearing, and a second end support portion supporting the second end portion. The open bearing includes a roller support portion supporting the conveyance roller and an open portion allowing the conveyance roller to be removed through the open portion from the roller support portion in a direction perpendicular to a rotation axis. The open bearing is movable from a first position, at which the conveyance roller is restricted from moving, to a second position at which the conveyance roller can move in the rotation axis direction. The second end portion is removable from the second end support portion by moving the conveyance roller from the second toward first end portion with the open bearing at the second position.

A banknote separating device is applicable for a financial self-service equipment, includes a banknote separating wheel set and a reverse wheel set for cooperating with the banknote separating wheel set, and the reverse wheel set includes a reverse-wheel-set rotating shaft, a reverse wheel fixing frame, and a reverse wheel assembly. One end of the reverse wheel assembly sequentially passes through an E-shaped snap ring, a flanged bearing, a one-way bearing stop ring and a one-way bearing to be mounted to the reverse wheel fixing frame, and the one-way bearing and the reverse wheel fixing frame are coupled by the one-way bearing stop ring to form a stationary rigid body, and the one-way bearing stop ring is in contact with only an outer ring of the flanged bearing.

The sheet conveyance apparatus includes a frame supporting first and second bearing portions, and a restricting portion. The frame supports the first and second bearing portions such that a movable amount with respect to the frame, in a direction along a sheet conveying direction, of the first bearing portion is larger than that of the second bearing portion. The restricting portion is provided with a predetermined gap from the first bearing portion in the direction along the sheet conveying direction, and configured to restrict the first bearing portion from moving in the direction along the sheet conveying direction in a case when the first bearing portion abuts with the restricting portion.

A folding roller module with combined bearing unit is disclosed. The folding roller module of the present invention comprises a folding roller and a plurality of combined bearing unit. In the present invention, a plurality of combined bearing unit are used to support the folding roller at suitable locations for enhancing the strength of the folding roller module, reducing the deformation of the folding roller, and reducing the vibration during operation.

A sheet feeder includes a frame, a roller holder, and a holder stopper. The roller holder includes a feed roller for feeding a sheet. The roller holder is detachably attachable to the frame. The holder stopper is configured to move between a restricting position and a non-restricting position. In a case where the holder stopper is located at the restricting position, the holder stopper restricts the roller holder from moving from an attached position at which the roller holder is fixed to the frame. In a case where the holder stopper is located at the non-restricting position, the holder stopper allows the roller holder to move relative to the frame.

A sheet feeding device includes a driving roller, a driven roller rotated by the rotation of the driving roller, a non-conductive feeding guide, a conductive frame, a conductive bearing and an urging member to urge the driven roller toward the driving roller. The feeding guide includes a supporting portion to displaceably support the rotation shaft in an urging direction. The frame includes a positioning portion to position the driven roller in the urging direction by contact with the rotation shaft in a state in which the driving roller is urged by the driven roller.