Bearing assembly incorporating shield ring precluding erosion

Details Bearing assembly incorporating shield ring precluding erosion Bearing assembly incorporating shield ring precluding erosion

1993-12-17

1996-03-12

Hannon, Thomas R.

Bearings

Rotary bearing

Roller drill bit

384420, 175107, F16C 1704, E21B 1022

Patent

active

054980810

ABSTRACT:
A mud motor bearing assembly is defined by and constructed with a support or base ring having an exposed upper or planar face. On the planar face, a number of PCD disc are attached to define a bearing surface at a common plane. The improved bearing assembly further includes a separate ring or an integral lip serving as a deflector ring brazed to the face of the support ring. The brazed deflector ring alters the fluid flow patterns of drilling fluid in the bearing assembly to reduce support ring erosion.

REFERENCES:
patent: 4345798 (1982-08-01), Cortes
patent: 4468138 (1984-08-01), Nagel
patent: 4560014 (1985-12-01), Geczy
patent: 4708496 (1987-11-01), McPherson
patent: 4802539 (1989-02-01), Hall et al.
patent: 4892420 (1990-01-01), Kruger

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