vägglager

Vägglager, or wall bearing, is a term used in Swedish engineering to describe a bearing assembly that is mounted in or on a wall to transmit load or support a rotating shaft. In structural engineering, vägglager refer to supports that anchor beams, lintels, or arches to a wall, transferring vertical loads and moments into the structural wall through fixed brackets, corbels, or embedded anchors. In mechanical applications, a vägglager denotes a bearing unit mounted in a wall or in a wall-mounted housing to support a shaft or axis; this type may involve flange bearings, sleeve bearings, or ball bearings housed within a wall flange.

Design and installation considerations include alignment accuracy, load type (radial and axial), moment transmission, and service conditions. The installation must provide sufficient stiffness and rigidity to prevent movement that could cause wear. For masonry walls, the wall must have adequate strength, and anchors or brackets must be properly embedded, often with steel reinforcement or chemical anchors. Lubrication, protection from corrosion, and accessibility for inspection are important for moving bearing surfaces.

Materials commonly used are steel or bronze for bearing surfaces, with concrete, steel brackets, or masonry as the wall. Maintenance involves monitoring wear and lubrication schedules for mechanical vägglager, and inspecting for cracks or loosening in structural uses.

See also: bearing, flange bearing, corbel, lintel, wall bracket.