expansion bearing

expansion bearing

A support at the end of a span where provision is made for the expansion and contraction of the structure.
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Typically, heavier duty conveyors have a non-expansion bearing placed on the drive end of the pulley and an expansion bearing placed on the driven end.
Limited Tenders are invited for Supply of Expansion Bearing With Housing
Valva elongate, with broad in distal part and round apex; costa expanded at basal 1/4 anteriorly, followed by deep emargination, then nearly straight beyond 2/5; ventral margin with 2 expansions sub-basally and medially, median expansion bearing dense setae; comb-like plate arising from beyond median expansion of ventral margin, short, as long as width of distal part of valva, slightly bent downward; apex round, with dense setae along termen; sacculus narrow, sclerotized, extending to middle of valva.
Tenders are invited for Bridge maintenance and repair including construction signs, pave marking, shotcrete, milling, patching, jacking and blocking, overlay, repair replace aluminum rail, repair silicone joint sealant, repair embedded galvanic anodes, repair modify existing expansion bearing, repair shim existing bearing, repair diamond grinding, repair full depth deck repairs, repair hydro-demolition, waterproofing, repair epoxy injection pressure crack sealing, repair embedded galvanic anodes.
reinforced concrete decks with precast concrete deck planks and a waterproof bituminous overlay; cast-in-place median barriers, bridge parapets, and deck joints; repairing fixed bearings and replacing expansion bearings with elastomeric bearings; and upgrading drainage and illumination systems.