The FE8 rolling bearing test rig

The FE8 rolling bearing test rig is used to investigate bearing- and lubricant-specific influences on the wear and friction behavior of rolling bearings. During the tests, bearing frictional torque and bearing temperature are continuously recorded.

The evaluation of the tests is carried out by determining the weight of the bearing components, creating surface test charts, lubricant analyses as well as reaction layer analyses.

Two different probes can be used to test both greases (angular contact ball bearings) and oils (axial roller bearings).

Test bench parameters
Speed stepless from 7.5 1/min to 3,000 1/min
Standard 7.5; 75; 750; 1,500; 3,000 rpm.
Axial load 100 to 100,000 N; controllable by load cell
Temperature 20 – 100°C
Friction conditions Boundary and mixed friction, hydrodynamics
Lubricants Grease; oil circulation lubrication
Measured variables continuous friction torque measurement, vibration measurement
Test bearing

Angular contact ball bearings 7312B, tapered roller bearings 31312A , deep groove ball bearings 6312, axial cylindrical roller bearings 81206 and 81212

Exams
  • DIN 51819: Mechanical-dynamic testing on the rolling bearing lubricant tester FE8 – Part 2: Procedure for greases, test bearings to be used, angular contact ball bearings or tapered roller bearings
  • DIN 51819: Mechanical-dynamic testing on the rolling bearing lubricant tester FE8 – Part 3: Method for lubricating oil, test bearings to be used, axial cylindrical roller bearings
  • FE8 lubricant test rig for pre-selection and testing of greases and oils; part of EN 12081.