Multi-Lobe Semi-Floating Bearings

Stability and Reliability

Waukesha Bearings provides uniquely engineered multi-lobe semi-floating bearings that improve stability and ensure long life and maximum reliability compared to conventional floating ring bearings.

Using proven technology, MLSF® bearings are designed to run at optimum temperatures with minimal vibrations, extending the life of the equipment and surrounding parts.

MLSF bearings for turbocharger applications

Long Life

MLSF bearings minimize vibrations, lessening the likelihood of early failure and extending mean time between repair (MTBR).

Bearings in operation have exceed 30,000 hours each, surpassing a competitive bearing in the same application lasting only 500 hours.

Minimal Downtime

A failed bearing can lead to equipment failure or downtime for a replacement bearing. A bearing system operating at an optimized temperature – cool enough to prevent coking yet hot enough to maintain optimum viscosity – solves the problem of failure, minimizing both downtime and power loss.

Reduced System Emissions

The MLSF design improves overall system efficiency and leads to reduced emissions (greenhouse gases), meeting industry demands.

Technical Data

Shaft sizes 13 mm (0.5″) and up
Bearing L/D as needed
Single bearings or cartridges
Typically high dynamic loading – 4.8 MPa (700 psi)
Temperatures up to 149°C (300°F), with higher temperature available
Lubrication with multi-viscosity oils
Various bronze grades available

MLSF journal bearing with Flexure Pivot tilt pad technology

Typical Applications

Smaller, high speed turbomachinery
Turbochargers in large diesel or natural gas engines