Rexnord has enhanced the protection on roller chains through the use of seamless rollers which increase the working life of chain and give smoother quieter running. This protection against dynamic loading, such as might be experienced with pallet handling duties is achieved by eliminating the point of weakness present with seamed rollers. Tests have shown Rexnord’s seamless rollers are able to withstand approximately.
25% higher vertical loads than conventional curled rollers.
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April 1886: the Brunkebergs tunnel
First ever example of a ground source heat pump?