Rotary bearing assembly

A rotary bearing assembly comprising:

• an input shaft configured to combine a rotating shaft of a motor to provide a power input;
• an inner-ring component comprising a gear set, wherein the inner-ring component is sleeved on the input shaft through the gear set and driven by the input shaft;
• and
• an outer-ring component sleeved on the inner-ring component through a load element and engaged with the gear set, wherein when the gear set is driven by the input shaft to drive the inner-ring component, the gear set drives the outer-ring component, and the inner-ring component and the outer-ring component are rotated relatively, wherein one of the inner-ring component and the outer-ring component is served to provide a power output, and a rotational speed difference is between the power input and the power output,
• wherein the inner-ring component comprises at least one output disc and a transmission shaft, and the at least one output disc is linked with the gear set through the transmission shaft,
• wherein the load element comprises a plurality of bearing rollers, and the outer-ring component includes an inner gear ring comprising an inner-gear-ring main body, an inner tooth portion and a running track for the plurality of bearing rollers running thereon, and the running track has an inclined angle relative to an axial direction of the input shaft, wherein the gear set of the inner-ring component and the inner tooth portion of the inner gear ring are partially engaged with each other.