... bits, drill pipe, Mud pump and stablizers for water well, oil field, construction, geothermal, directional boring, and ... carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life. Sealed Bearing Structure 1 ... 7 daysMarketCanada, USA,Middle east ,Africa,EuropeApplicationpetroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal ...