Due to their inherently high initial
and final spring rates, conventionally sprung casters with limited spring deflection develop load acceleration so great that the net result
is the generation of destructive shock to vehicle and payload. When payloads and travel surface conditions vary, the risk of serious damage is even greater.
It is not uncommon for casters with conventional suspension systems and limited deflection to
cause more severe shock damage than comparable casters under
The wide deflection range engineered
into the Modern Vari-Flex line of Shock Isolating Casters is vitally
important to the overall efficiency of the suspension system itself.
Because of its exceptionally wide deflection range, the initial and
final spring rates are extremely low and gradual. As a result, effective
shock mitigation is now available to a greater range of payloads and at
more varying speeds than before.
Vari-Flex casters drastically reduce shimmy,
dynamic bounce and resonance under all loads, from empty equipment weight to
payloads at least 50% greater than their rated capacity. Their wide deflection
range assures maximum protection of the payload and longer service life of the