The protective rollers employed on roller chains are intended to extend the working life of the chains by reducing fatigue caused by running impacts and provide wear resistance. This protection has been enhanced for Rexnord roller chains through the use of seamless rollers, which further increase the working life of chain plus 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 percent higher vertical loads than conventional curled rollers.
Rexnord produce chain with two different types of seam-free rollers; one is cold formed the other is produced from precision tubes.
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