Pulling tool for extracting bushings and bearings

Details Pulling tool for extracting bushings and bearings Pulling tool for extracting bushings and bearings

1978-08-08

1980-06-17

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29265, B23P 1904

Patent

active

042076641

ABSTRACT:
A pulling tool for extracting bushings, bearings or similar devices from a blind hole consists of first and second pulling members and a drive member. The pulling members are inserted into a central recess of a bushing or bearing, and a threaded shank portion of the drive member is inserted into an axial opening between the pulling members, engaging threaded inner surfaces of the pulling members and moving the pulling members apart to cause lip portions at the inner ends of the pulling members to be driven behind the bottom edge of the bushing or bearing. As the drive member is turned, the pulling members back up onto the drive member, carrying with them the bushing or bearing. One of the pulling members has a recess on a side surface of its outer end to receive a tool for preventing rotation of the pulling members relative to the drive member when the pulling tool is used to remove a bearing. Alternatively, the outer ends of the pulling members form a hex configuration which can be gripped by an open ended wrench.

REFERENCES:
patent: 1525274 (1925-02-01), Day
patent: 1658896 (1928-02-01), Hays
patent: 2290427 (1942-07-01), Harrington
patent: 2305076 (1942-12-01), Graham
patent: 3055093 (1962-09-01), Ruble

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