Product Description

Hughes Tool and Reed Rock Bit — later Baker Hughes — tricone rock bits allegedly used asbestos-fabric bearing seals and asbestos-cloth grease retainers on sealed-bearing and journal-bearing cones, according to publicly filed asbestos litigation records. Rig floormen allegedly broke used bits out of the drill string, and mechanics allegedly cut and disassembled the bits in the shop for inspection or salvage, allegedly liberating asbestos-fabric residue from the bearing cavities.

Workers Exposed

Roughnecks and floormen allegedly made and broke the bit connection on the rig floor. Drillers allegedly supervised the bit trip from the doghouse. Oilfield mechanics allegedly disassembled worn bits in the district shop. Warehouse hands allegedly handled and inspected returned bits.