Coupling for supercharger

A coupling assembly arranged between an input shaft and a rotor shaft of a supercharger, the coupling assembly comprising:

• a first coupling having a first plurality of openings therein, the first plurality of openings are defined by a first series of steps and a second series of steps and wherein the first series of steps are radially offset from the second series of steps and are parallel to each other, the first coupling mounted for concurrent rotation with the input rotor shaft;
• a second coupling having a second plurality of openings therein, the second coupling mounted for concurrent rotation with the input shaft;
• a plurality of coupler pins;
• a first plurality of elastomeric inserts received by the first plurality of openings, the first plurality of elastomeric inserts receiving first portions of the plurality of coupler pins wherein the first inserts each have an arcuately shaped insert body including a first wing portion and a second wing portion, wherein the first wing portion nests against a step of the first series of steps and wherein the second wing portion nests against a step of the second series of steps;
• and
• a second plurality of elastomeric inserts received by the second plurality of openings, the second plurality of elastomeric inserts receiving second portions of the plurality of coupler pins;
• wherein the first and second elastomeric inserts provide dampening between (i) the first coupling and the input shaft and (ii) the second coupling and the rotor shaft.

A coupling assembly arranged between an input shaft and a rotor shaft of a supercharger, the coupling assembly comprising:

• a first coupling having a first plurality of openings therein, the first plurality of openings defined by a first series of steps and a second series of steps, the first coupling mounted for concurrent rotation with the rotor shaft;
• a second coupling having a second plurality of openings therein, the second coupling mounted for concurrent rotation with the input shaft;
• a central hub disposed intermediate the first and second couplings, the central hub defining central hub bores therein;
• a plurality of coupler pins received in the central hub bores;
• a first plurality of elastomeric inserts received by the first plurality of openings, the first plurality of elastomeric inserts receiving first portions of the plurality of coupler pins wherein the first inserts each have an arcuately shaped insert body including a first wing portion and a second wing portion, wherein the first wing portion nests against a step of the first series of steps and wherein the second wing portion nests against a step of the second series of steps;
• and
• a second plurality of elastomeric inserts received by the second plurality of openings, the second plurality of elastomeric inserts receiving second portions of the plurality of coupler pins;
• wherein the first and second elastomeric inserts provide dampening between (i) the first coupling and the central hub and (ii) the second coupling and the central hub.