kelly bushing


Also found in: Acronyms.

kelly bushing

[′kel·ē ‚bu̇sh·iŋ]
(petroleum engineering)
A device added to the rotary table through which the kelly passes, so that the torque of the table is transmitted to the kelly and the drill.
References in periodicals archive ?
According to Ron Taylor, KO Steel, San Antonio, Texas, some of the most common uses for castings are in manual and power tong components (levers, jaws, latches, covers and safety clamps) elevator components, (bodies, doors, latches, link blocks, bails and slip segments) rig components (swivel bodies, gear boxes, kelly bushings and brake levers), blowout preventers (bodies and rams), valves (high-pressure bodies for wellheads) and pumps (bodies, covers and impellers).