Abstract: A wedge locking washer has a central axis, a central through hole defining an inner peripheral axial surface, an outer peripheral axial surface, a first side surface adapted to face and engage another wedge locking washer. The first side has a pattern of radially extending cams, each cam having a first surface inclined in relation to a central plane of a wedge can locking surface and a second surface. The first and the second surface of each cam meet in a radially extending cam edge and the second surface of a first cam meet the first surface of an adjacent cam in an radially extending inner corner. Each cam has a height h defined between a bottom plane in which the bottom of the inner corner is arranged and a top plane in which the top of the cam edge is arranged.

Abstract: A fastening assembly includes a fastening element extending along a central axis between a first and a second end. The fastening element includes a head section extending from the second end along the central axis and engageable by a tool, such as a hexagonal head. A protruding cylindrically shaped section has a smaller diameter than the head section. A flanged section is arranged between the head section and the protruding cylindrically shaped section. The fastening element on the cylindrically shaped section includes an engaging section. A first portion of the engaging section is positioned at a distance from the surface of the flanged section facing the first end, such that a locking washer will be stopped from reaching the surface of the flanged section if introduced on the cylindrically shaped section with its smaller central diameter in the direction of the engaging section.

Abstract: A locking washer assembly includes a first locking washer and a second locking washer. The first and second locking washers include a mechanism for engaging an element to be attached by means of a screw joint. The first and second locking washers include a mechanism for engaging each other. The first locking washer includes a central through hole that is larger than a central hole of the second locking washer. An attachment assembly includes a screw intended to be used with the locking washer assembly.

Abstract: A method for the manufacturing of circular washers for locking from blanks, a washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The method is especially comprised in the steps of producing a washer blank having an annular shape; introducing the washer blank into a die assembly for forming a closed shaping space by a lower die portion, an opposing upper die portion, a central die portion and a support piece, the central die portion extending through a washer blank central hole; forming the blank to a washer by mutual movement of said lower and upper die portions; and opening the closed shaping space to extract the formed washer. The invention also relates to a device and a washer.

Abstract: A locking washer assembly includes a first locking washer and a second locking washer. The first and second locking washers include a mechanism for engaging an element to be attached by means of a screw joint. The first and second locking washers include a mechanism for engaging each other. The first locking washer includes a central through hole that is larger than a central hole of the second locking washer. An attachment assembly includes a screw intended to be used with the locking washer assembly.

Abstract: A method for producing metallic washers (1) for locking in bolted joints, a washer having an annular configuration and on one side (9) a pattern of radially extending cams (10) and on the other side having a pattern of radially extending teeth (3), the washers on at least the side (2) having the pattern of teeth having a surface with a hardness preferably exceeding the hardness of the material to interact with the washer pattern of teeth in a locking operation. The method is especially characterized in the steps of—coating a batch of washers (1) with a corrosion resistant outer surface layer (7), the hardness of which exceeding the hardness of the material (6) to interact with the washer pattern of teeth (3) in a locking operation. The present invention also relates to a washer and a plant.

Abstract: Methods for manufacturing a hardened steel locking washer are disclosed, the washer having a pattern of teeth on one side and a pattern of cams on the other side, the method comprising the steps of providing the washer with an anti-corrosion coating by providing a low-alloy steel washer, hardening the low-alloy steel washing having a carbon content greater than 0.25% by weight, heating to an austenitizing temperature and subsequent quenching, and applying a basic coating comprising zinc flakes non-electrolytically onto the hardened low-alloy steel washer.

Abstract: Various embodiments include a method for the manufacturing of washers for locking, each washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams, the method comprising forming each washer in successive operations from a washer blank strip, a washer being punched out in a final punching operation. Various embodiments include forming and providing one side of the washer with a flat surface edge zone extending radially outside the pattern of this washer side and punching out the washer with a punch acting against at least a part of said flat surface. Embodiments of the invention also relate to a device for the manufacturing of washers and a washer.

Abstract: A locking element for locking in a bolted joint, the locking element comprising one side comprising a pattern of radially extending cams, the main surface of which having a helix configuration, the pitch of the cams exceeding the pitch of the threads involved in the bolted joint. The locking element is especially characterized in that the locking element is a washer intended to be applied as a single locking element in the joint and in that the other, the opposite, side of the washer comprises mechanical means for providing a locking action for preventing rotation between said other side and a surface against which said other side is intended to act. The invention also relates to a bolted joint.

Abstract: Methods for manufacturing a hardened steel locking washer are disclosed, the washer having a pattern of teeth on one side and a pattern of cams on the other side, the method comprising the steps of providing the washer with an anti-corrosion coating by providing a low-alloy steel washer, hardening the low-alloy steel washing having a carbon content greater than 0.25% by weight, heating to an austenitizing temperature and subsequent quenching, and applying a basic coating comprising zinc flakes non-electrolytically onto the hardened low-alloy steel washer.

Abstract: A method for the manufacturing of circular washers for locking from blanks, a washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The method is especially comprised in the steps of producing a washer blank having an annular shape; introducing the washer blank into a die assembly for forming a closed shaping space by a lower die portion, an opposing upper die portion, a central die portion and a support piece, the central die portion extending through a washer blank central hole; forming the blank to a washer by mutual movement of said lower and upper die portions; and opening the closed shaping space to extract the formed washer. The invention also relates to a device and a washer.

Abstract: A locking system comprising a fastening element, the fastening element being a hexagonal nut or a hexagon-headed bolt, and a locking washer unit, a locking washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The system is especially characterized in that the fastening element comprises a contact portion extending from the hexagonal part of the fastening element and providing an annular end surface of the hexagonal fastening element part, the contact portion having an outer diameter (D) substantially corresponding to the maximum width (w) of the hexagonal fastening element part. The invention also. relates to a fastening element.

Abstract: The present invention concerns a mounting element (2, 10, 50, 1000) comprising a means of fastening (4, 12, 53, 102) such as a nut or bolt and an upper washer (14) and a lower washer (16) constituting a pari of washers, where each washer has one side with cams (18, 20) and one principally flat side (22, 24), the washer sides with cams being arranged facing each other. Moreover, the means of fastening includes a principally flat side (26) arranged against a principally flat upper side (22) of the upper washer (14). The said mounting element furthermore includes at least one means of containment (28) arranged to keep together the means of fastening and the pair of washers, whereby the means of containment is allowed a certain axial movement and rotation in relation to the means of fastening or the movement of the pair of washers. The present invention concerns also a means of manufacturing a mouting element and a usage.