A fan motor, which is mounted on an upper surface of an electronic component to cool the electronic component. The macroreticular polymers include polystyrene, trimeric copolymer with styrene, ethylene, butadiene elastomeric SBR with styrene 10%, 20% and 40% fully hydrogenated to saturation, which after special cross-linking in chlorinated solvents with a cross-linking agent forms a thick cross-linked mass which is cut and deodorized. The crankshaft is eccentrically supported in the rings whereby the crankshaft axis is radially spaced from the ring axis.