Nested pin design for common pivot

An agricultural baler pivot assembly comprising:

• a frame having a frame bore;
• a tailgate having a tailgate bore;
• an arm having an arm bore;
• a tailgate pin extending along a rotation axis and having a tailgate pin bore extending along the rotation axis, a respective first outer face portion extending along the rotation axis and a respective second outer face portion extending along the rotation axis, wherein the respective second outer face portion is fixed in the frame bore;
• a tailgate bushing positioned radially between the tailgate bore and the first outer face of the tailgate pin to support the tailgate for rotational movement relative to the tailgate pin about the rotation axis;
• an arm pin having a respective first outer face portion extending along the rotation axis and a respective second outer face portion extending along the rotation axis, wherein the respective second outer face portion is fixed in the arm bore;
• an arm pin bushing positioned radially between the tailgate pin bore and the first outer face portion of the arm pin to support the arm pin for rotational movement relative to the tailgate pin about the rotation axis;
• and
• a pivot roller mounted to the arm pin for rotational movement relative to the arm pin about the rotation axis.

A method for assembling an agricultural baler frame having a frame bore, a tailgate having a tailgate bore, an arm having an arm bore, and a pivot roller, to provide relative rotation between the frame, tailgate, arm, and pivot roller about a rotation axis, the method comprising:

• (a) positioning the tailgate adjacent to the frame with the tailgate bore aligned with the frame bore along the rotation axis;
• (b) installing a tailgate pin having a tailgate pin bore along the rotation axis into the frame bore and the tailgate bore, wherein the installing the tailgate pin into the tailgate bore comprises installing a tailgate bushing radially between the tailgate bore and an outer cylindrical surface of the tailgate pin;
• (c) positioning the arm adjacent to the frame with the arm bore aligned with the frame bore along the rotation axis;
• (d) installing an arm pin having an arm pin bore along the rotation axis into the arm bore and the tailgate pin bore;
• (e) positioning the pivot roller with a bearing of the pivot roller aligned with the rotation axis;
• and
• (f) installing a roller shaft along the rotation axis into the arm pin bore and the bearing.