Patent ID: 8535197

Claim:
A speed changer assembly for transmitting rotational energy from prime mover to a driven shaft of the assembly, the assembly comprising: (a) an internal ring gear operatively couplable to a rotational output of the prime mover; (b) at least one primary planet gear in meshing engagement with the internal ring gear; (c) for each of the at least one primary planet gear, a corresponding secondary planet gear in meshing engagement with the primary planet gear; (d) a sun gear in meshing engagement with at least one secondary planet gear, the sun gear being operatively couplable to the driven shaft of the assembly; and, (e) a plurality of removable flanges, each flange having at least one primary flange bore for localizing the at least one primary planet gear, and at least one secondary flange bore for localizing the at least one corresponding secondary planet gear.