Oiltech Bearings engineers solutions for customers rotating equipment. Based on the specifications provided by client a design is prepared and evaluated by FEA (Finite Element Analysis) to predict the bearing performance and ensure safe operation of the bearing.

After establishing a suitable design, we provide support with tuning the bearing for suitable stiffness and damping coefficients to ensure stable rotor dynamic operation of the machinery.

Tilt Pad Journal Bearing

Clients provide information such as shaft diameter, speed, load and lubricant. This is often combined with established limits such as max allowed specific load and max oil film temperatures.

Mechanical Design

Inital consideration is given to the mechanical package of what type of bearing design is possible and what the experience and expectations are for the type of bearing design the client uses, or Oiltech will propose a solution.

FEA Performance Prediction

Finite Element Analysis (FEA) software is used to predict the bearing performance and determine stiffness and damping coeffients. This can be optimised and tuned to suit rotor dynamic requirements.


The performance of a bearing is predicted by using FEA software to determine the operating parameters of bearings. The input data required includes:

  • Shaft diameter
  • Load
  • Lubricant grade
  • Lubricant feed temperature
  • Bearing geometry

The output data from analysis provides data such as:

  • Maximum oil film temperature
  • Minimum oil film thickness
  • Power loss
  • Required oil flow
  • Stiffness and damping coefficients

bearing performance prediction software


Oiltech Bearings can design bearings with established client design practises and norms. We can also use standard product ranges we offer and engineer them with specific geometry to suit your application. Our standard product ranges include modular thrust bearings, tilt pad journal bearings, combined bearings and equalising thrust bearings.

J Series thrust bearing bearing

Bearing Upgrade Case Study

Read our case study upgrade to a Howden process fan.