Abstract: A spring according to this invention has a core of an elastically deformable but substantially incompressible material and having two axially spaced end surfaces operatively engageable with objects to be relatively resiliently mounted. Thus when the two bodies engaging the end surfaces move toward each other the core swells radially. An annular belt formed of an elastic synthetic resin snugly surrounds the core between its ends. The belt can be lapped or can be a single unitary ring. It may also be formed of a plurality of independent layers having ends provided with a heat-shrunk clip for securing the ends together. To soften the initial spring characteristic the belt is corrugated and has peaks engaging the core and valleys normally not engaging the core. The corrugations may run longitudinally or transversely.

Abstract: An arrangement for resiliently absorbing forces in various operational conditions, has a housing, a resilient element located in the housing and formed as a friction spring with a plurality of inner and outer conical rings cooperating with one another with interposition of a lubricant, and an additional body of the lubricant accommodated in an inner chamber formed inside the rings and including such a quantity of the lubricant which is sufficient for continuously replenishing the lubricant between the rings during operation of the arrangement in various operational conditions.