Toroidal type continuously variable transmission supported by a common bearing and reaction stationary shaft

A toroidal type continuously variable transmission comprising an input disk, an output disk and power rollers sandwiched and frictionally engaged between said input and output disks so as to transmit rotational power therebetween at a transmission ratio variable according to an inclination of said power rollers relative to said input and output disks, wherein the improvement comprises:

• a housing;
• a stationary shaft mounted to said housing;
• a first bearing means supporting said input disk radially around said stationary shaft so as to be rotatable coaxially therearound;
• a second bearing means supporting said output disk radially around said stationary shaft so as to be rotatable coaxially therearound;
• a third bearing means supporting said input disk relative to said stationary shaft against an axial thrust oriented away from said output disk, while allowing said input disk to rotate coaxially around said stationary shaft;
• and
• a fourth bearing means supporting said input disk relative to said stationary shaft against an axial thrust oriented away from said input disk, while allowing said output disk to rotate coaxially around said stationary shaft,
• wherein said fourth bearing means is a radial-thrust bearing means, and said output disk is axially supported from said fourth bearing means via a hollow shaft member which is radially and axially supported by said fourth bearing means at a first end thereof remote from said output disk and is torque-transmittingly engaged with said output disk, said hollow shaft member serving as a shaft to bear a rotary element to be rotationally driven at a variable speed by a rotational power input to said input disk.