MM crankshafts are precisely machined, ground and highly polished from high tensile strength forged and cast steel blanks. Precise and accurate balancing guarantees extended run life of the rotating assembly.
Bearings
Crankshaft Assembly
MM bearings are manufactured to precisely interchangeable parts of OEM tolerances. This assures properfit, alignment and extended service under extreme and demanding oilfield conditions.
Main Roller Bearing
Crosshead pin Bearing
Connection Rod Bearing
Pinion Bearing
Crosshead Assembly
Crosshead Assembly
MM crossheads are manufactured from high quality, cast steel and the guides are manufactured from a quality manganese bronze normally used in bearings. This combination of materials provides a low friction interface and generates little heat.
Pinionshaft Assembly
Pinionshaft is made of forged alloy steel, a herringbone gear with medium hard tooth surface is machined.
For easy maintenance, single-row radial roller bearings with double-ribbed outer rings are used.
The pinion shaft is extended at both ends so that a pulley or sprocket can be mounted at either end.