Power End Parts
HNA supplies power end parts such as Crank shaft, Pinion shaft, Crosshead, Bull Gear,
Pulsation Dampener, Frame and so on for following triplex mud pump:
Emsco: f-500 f-800 f-1000 f-1300 f-1600
National oilwell: 8-p-80 9-p-100 10-p-130 12-p-160
Pinion shaft is made of forged alloy steel, on which a herringbone gear with the medium-hard teeth surface is machined. For easy maintenance, single row radical cylindrical roller bearing with double ribbed outer ring is used. The pinion shaft ends are prolonged so that sheave or sprocket can be mounted on either end.
HNA brand crankshaft is made of casted alloy steel. Eccentric ring gear, connection rod and bearing are mounted on it. The eccentric ring gear is herringbone. When assembly, the herringbone bore and crankshaft are of interference fit and fastened with bolts and lock nuts. Big ends of connection rod are mounted on three eccentric straps of the crankshaft via single row cylindrical roller bearings. Small ends are mounted on crosshead pin via double row cylindrical roller bearing. Double row radial spherical roller bearings are mounted at either end of the crankshaft.