Kelly Bushing

Published at 12:56PM - 14/01/15

A steel bushing that transmits the rotary motion from the Rotary Table to the Kelly and in turn the Drill String.

The Kelly Bushing uses steel lugs or pins on its flat bottom to attach to the topside of the Rotary Table to gain its rotary motion.

The inside profile of the Kelly Bushing will match that of the Kelly– either square or hexagonal, causing much the same gripping effect as a spanner / wrench to a nut, causing the Kelly to turn.