Automatic Four Ball Tribometer - Friction and Wear Tester – Toron4B10A™

Automatic Four Ball Tribometer - Friction and Wear Tester (Toron4B10A™) is designed to assess the load-carrying performance of lubricants under extreme point-contact pressure during sliding friction. It provides three key measurements: maximum non-seizure load (PB), welding load (PD), and comprehensive wear value (ZMZ). In addition to these evaluations, the device can perform extended anti-wear testing and accurately measure the friction coefficient of lubricants.

Applicable standards

  1. Method for measuring the extreme pressure properties of lubricants using the Four-Ball Machine
  2. Procedure for assessing the wear resistance of lubricating oils with the Four-Ball Machine
  3. Test method for evaluating the extreme pressure performance of lubricating grease using the Four-Ball Machine

No.Product PerformanceTechnical Parameter
1Normal force range60N-10kN (stepless adjustable)
2Normal force loading methodAutomatic loading
3Maximum friction force300 N
4Friction testing error±3%
5Spindle speed range200-2000 rpm (stepless adjustable)
6Spindle speed error±10rpm
7Temperature control rangeRoom temperature - 200℃
8Temperature control error±2℃
9Time control range1 second to 99 hours
10Steel ball for testingΦ12.7 mm

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