Daniel B Unger

US Patent:

20160273191, Sep 22, 2016

Filed:

May 31, 2016

Appl. No.:

15/168765

Inventors:

- South Milwaukee WI, US
Daniel T. Unger - Yorkville IL, US
Vladimir A. Korchagin - Loves Park IL, US
Jean M. Yaunke - Delavan WI, US

Assignee:

Caterpillar Global Mining LLC - South Milwaukee WI

International Classification:

E02F 9/12
F16C 11/04

Abstract:

A center pintle hub coupled to a base of a machine is disclosed. The center pintle hub is casted as a single piece. The center pintle hub includes a disc, a hole, a plurality of protrusions, a hollow cylindrical member, and a plurality of stiffening members. The disc couples to the base and includes a first surface and a second surface. The hole extends from the first surface to the second surface, along a central axis of the disc. The plurality of protrusions, disposed on the second surface, is arranged in an array of square configuration. The plurality of protrusions extends from the second surface and attach to a plurality of stiffeners of the base. The hollow cylindrical member is coupled to the first surface and arranged coaxially with the hole of the disc. The plurality of stiffening members is circumferentially disposed and equally spaced around the hollow cylindrical member.