ZAN - test rig for testing journal bearings

Rig ZAN is used for investigation of statically loaded journal-sliding bearing. The stand is especially suitable for testing bearings that are lubricated with contaminated lubricants. Rotational speed and loading are programmable within the wide range.

Schematic view of head unit (click sketch to enlarge):

  1. Tested bearing
  2. Replacable journal
  3. Housing of tested bearing
  4. Driven shaft
  5. Hydraulic cylinder
  6. Outer supporting bearing

Photo of test rig:


  • Maximum rotary bearing reaction: 120kN
  • Maximum specific load: 128 MPa
  • Shaft rotational speed: 300 - 4500 rpm
  • Diameter of standard journal: 52.700 mm
  • Width of the bush: up to 50 mm
  • Fatigue test sequence according to two-point strategy

Measured and controlled quantities:

  • Max. load: up to 70000 N
  • Shaft rotational speed: 0-3000 rpm
  • Dimensions of tested bearing: diameters: 40 - 60 mm, max. length: 60 mm
  • Temperature of tested bearing
  • Load of tested bearing
  • Sliding distance
  • Wear of tested bearing

Examples of the research:

  • Neyman A. Problems of abrasive wear investigation. Zeszyty Naukowe PG., 1991, Nr 454, Mechanika Nr 59, s.73-84 (in Polish)

Contact person: