Eccentric oscillating gear device
AssigneeSumitomo Heavy Industries, Ltd.
InventorKenji Shirouzu
Life of this patent
Estimating the term…
Abstract
An eccentric oscillating gear device includes: a crankshaft including an eccentric body; an oscillating gear oscillated by the eccentric body; and an eccentric bearing disposed between the oscillating gear and the eccentric body, in which the eccentric bearing includes a plurality of rolling elements, some rolling elements adjacent in a circumferential direction of the plurality of rolling elements are in contact with each other, and a spacer is disposed between some of the other rolling elements adjacent in the circumferential direction of the plurality of rolling elements.
Claims15
An eccentric oscillating gear device comprising:
- a crankshaft including an eccentric body;
- an oscillating gear oscillated by the eccentric body;
- and
- an eccentric bearing disposed between the oscillating gear and the eccentric body,
- wherein the eccentric bearing includes a plurality of rolling elements,
- some rolling elements adjacent in a circumferential direction of the plurality of rolling elements are in contact with each other, and a spacer is disposed between some of the other rolling elements adjacent in the circumferential direction of the plurality of rolling element, and
- when a dimension in an axial direction of the eccentric body is defined as an axial dimension, an axial dimension of the spacer is smaller than an axial dimension of the rolling element.
Dependencies are inferred from the claim text.