Abstract: A rock bit cone retention means is disclosed which primarily utilizes a series of segmented rings. The segmented rings are inserted into a relatively deep annular channel formed transverse to the axis of either a journal or a cone of a rock bit leg assembly. The complementary channel, shallow in depth, is formed in either the journal or the cone. The cone, when properly positioned on the journal, closes out the channel formed in both the cone and the journal. Upon assembly, the segments are urged within the deep groove or channel in the journal or the cone such that each of the segments do not protrude beyond the bearing surface as the cone is passed over an end of the journal. Means are provided adjacent the cone retention segment to accept a spring biasing means to urge each segment away from the bottom of the deep groove in the journal or cone.

Abstract: A rock bit cone retention means is disclosed which primarily utilizes a series of segmented rings. The segmented rings are inserted into a relatively deep annular channel formed transverse to the axis of either a journal or a cone of a rock bit leg assembly. The complementary channel, shallow in depth, is formed in either the journal or the cone. The cone, when properly positioned on the journal, closes out the channel formed in both the cone and the journal. Upon assembly, the segments are urged within the deep groove or channel in the journal or the cone such that each of the segments do not protrude beyond the bearing surface as the cone is passed over an end of the journal. Means are provided adjacent the cone retention segment to accept a spring biasing means to urge each segment away from the bottom of the deep groove in the journal or cone.