Downhole tool bearing assembly

Details Downhole tool bearing assembly Downhole tool bearing assembly

1996-04-26

1997-11-25

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

175107, 384 97, F16C 1910, E21B 402

Patent

active

056904347

ABSTRACT:
A downhole tool bearing assembly is provided which utilizes a secondary annular threaded locknut and a compression ring in order to take up tolerance stack-up and to provide supplemental preload through a bearing housing assembly, thus helping to ensure against accidental disassembly during operation. The bearing housing assembly is comprised of a prepackaged subassembly of thrust bearings, sleeves and, optionally, "BELLEVILLE"-type disk springs which can be quickly and easily installed onto a downhole tool drive shaft or other similar apparatus by maintenance personnel having a minimum of training. The bearing housing assembly is designed such that reconfiguration involves little more than removal and reinstallation in the opposite orientation, thereby overcoming the need to reconfigure the bearing assembly one bearing at a time.

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patent: 5074681 (1991-12-01), Turner et al.
patent: 5248204 (1993-09-01), Livingston et al.

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