Waukesha Bearings supplies medium and thick wall journal bearings specifically designed for turbomachinery. Several configurations are available to handle application needs for load capacity, rotating load, stiffness, damping, and rotordynamic stability.
The addition of grooves to fixed profile bearings can reduce destabilizing effects due to fluid rotation, while alterations to the circular geometry provide additional stability gains.
Performance can also be optimized through bearing material and lubrication method. Lubrication may be pressure fed or self-lubrication, the latter typically with an oil ring. Polymer linings can be used to extend performance limits or withstand high ambient temperatures. Hydrostatic jacking is recommended for machines with high start-up loads.
Sleeve Bearing Geometries
Multi-lobe semi-floating bearings combine a multi-lobe inner geometry with an anti-rotation device. Dams on the axial ends of the tapered segments increase damping. Designed to run at optimum temperatures with minimal vibrations, MLSF bearings are ideal for turbochargers and other small, high-speed turbomachinery.
The upper and lower halves of an offset half bearing are displaced transverse to the shafts axis for greater stability than plain sleeve bearings.
Tilt Pad Bearing in the Space of a Sleeve Bearing
Flexure Pivot® tilt pad journal bearings offer the performance of a tilt pad bearing with the simplicity of a sleeve bearing. Available with a low-profile, Flexure Pivot bearings can sometimes replace sleeve bearings without housing modifications.