Roll-Ring Tensioners

ROLL-RING chain tensioners offer complex functional advantages, as they are chain tensioners and dampers in one. The chain tensioner is easily installed where space limitations prohibit the use of conventional chain tensioners.


Based on two simple effects and awarded the Innovation Prize of the State of Saxony, Germany, this minimal mechanisms has a new simple principle function. The elastic ring engages with the chain strands and rolls between them in a pre-stressed condition taking up the shape of an ellipse. The constantly opposing movements of the load and un-load strands cancel each other out, to the ”zero sum movement”, thereby holding the ROLL-RING in position.

We supply Roll-Ring Chain Tensioners to suit both BS and ANSI Chains, ROLL-RING Chain Tensioners can be applied in a wide variety of fields of mechanical engineering and are very easy to install.

ROLL-RING Chain Tensioners do not require any time for maintenance or adjustment; they are automatic, always exactly diametrical and self-lubricating in chain operation.

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