Roller cone bit bearing with elastomeric seal having self...

Details Roller cone bit bearing with elastomeric seal having self... Roller cone bit bearing with elastomeric seal having self...

2007-11-21

2010-06-15

Bagnell, David J. (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Rolling cutter bit or rolling cutter bit element

C384S094000, C277S550000

Reexamination Certificate

active

07735583

ABSTRACT:
A roller cone bit having an elastomeric seal with a self break-in property is disclosed. The elastomeric seal includes abrasive material on a sliding surface for facilitating break-in. Examples of abrasive materials include ground rock, hard metals, tungsten, tungsten carbide, tantalum, tantalum carbide, titanium carbide, titanium nitride, and minerals, diamonds and nanomaterial enhanced diamond.

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