Tribology (Bearing System Design)


Within the bearing system of a turboexpander, there are many interacting surfaces in relative motion that need significant engineering attention to achieve the operating stability, damping, and reliability required. Tribology is a mechanical engineering specialty where engineers study principles of friction, lubrication, and wear. The interaction between a solid exposed surface and interfacing materials and environment can result in wear or loss of material from the surface. Major types of wear include abrasion, erosion, corrosion, and friction (adhesion and cohesion). Engineers can minimize wear by modifying the surface properties through surface finishing or by use of lubricants. Lubricants are important in a turboexpander’s operation and maintenance. It is therefore imperative that maintenance personnel follow recommended service intervals and utilize appropriate viscosity lubricants to achieve the best service life of the equipment.

Project ARES

Standard Turboexpander-Compressor for 200MMSCFD Gas Plants

A recent addition to LAT’s turboexpander portfolio is the first standard turboexpander-compressor for 200MMSCFD gas plants with either active magnetic or oil bearings. Both configurations are offered for the same price. Connect with an L.A. Turbine Sales Representative.

Active Magnetic Bearing Oil Bearing
  •  High Reliability & Performance
  • Proven Reliability & Performance
  • Fewer Operational & Maintenance Costs
  • Ongoing Operational & Maintenance Costs
  • Small & Adjustable Footprint
  • Larger Footprint
  • Requires No Lube Oil System
  • Requires Oil Lube Skid, Pumps, Reservoir, Heating & Cooling System