Molded in plastic ring in { one piece agitators ]
This ring is a bearing designed to rub against the outside of the porcelain basket tube, it reduces the strain on the agitator drive spline by absorbing some of the side force. GE FF washers have a removable lower agitator bearing that covers the three tub mounting bolts that does the same thing [ as do several other brands ].
I still thing it would be correct to call the little grabby things that are in all WP built DA agitators dogs or if you like cams, including the red plastic ones that you pictured earlier.
This ring is a bearing designed to rub against the outside of the porcelain basket tube, it reduces the strain on the agitator drive spline by absorbing some of the side force. GE FF washers have a removable lower agitator bearing that covers the three tub mounting bolts that does the same thing [ as do several other brands ].
I still thing it would be correct to call the little grabby things that are in all WP built DA agitators dogs or if you like cams, including the red plastic ones that you pictured earlier.