Heavy duty I-Beam pitman arms transfer the loads between the equalizer beam and the crank pins. They are stronger and less susceptible to fatigue cracking than our competitor’s pipe pitman arms.
The upper ends of the pitman arms sit in saddles welded to the equalizer beam. The two halves are bolted together for easy assembly and disassembly. They are also greaseable.
Involute gearing has been the backbone of the North American pumping unit industry for over 100 years. Combined with the roller bearings in the gearbox to provide the most reliable, quietest gear reducers in the industry. The oiling system is designed to allow speeds as slow as 1 stroke per minute.