Test Capabilities

    The TE 82 is a modified version of the TE 92 Rotary Tribometer, using manual dead-weight loading instead of automatically controlled pneumatic loading. The machine may be used to run tests according to the following standards:

    ASTM D2266 Wear Preventive Characteristics of Lubricating Greases

    ASTM D4172 Wear Preventive Characteristics of Lubricating Fluid

    ASTM D2596 Extreme Pressure Properties of Lubricating Greases

    ASTM D2783 Extreme Pressure Properties of Lubricating Fluid

    IP 239 Extreme Pressure Properties: Friction and Wear Test for Lubricants

    DIN 51350/1-5 Testing Lubricants: Testing in the Shell Four-Ball Tester

    ISO/CD 11008 Petroleum Products and Lubricants – Determination of Extreme Pressure Properties of Lubricating Greases – Four Ball Method

    TE 82 with TE 82/RCF Rolling Four Ball Test Assembly

    IP 300 Rolling Contact Fatigue Tests for Fluids

    TE 82 with TE 82/KRL Shear Stability Test Adapter and TE 82/SM Temperature Control Service Module

    DIN 51350/6 Testing of Shear Stability of Lubricating Oils Containing Polymers

    CEC L-45-A-99 Viscosity Shear Stability of Transmission Lubricants (Taper Roller Bearing Rig)

    ISO 26422:2014 Determination of shear stability of lubricating oils containing polymers – Method using a tapered roller bearing

    TE 82 with TE 82/TW Thrust Washer Test Assembly

    ASTM D3702 Standard Test Method for Wear Rate of Materials in Self-Lubricated Rubbing Contact Using a Thrust Washer Testing Machine


    The TE 82 has dead weight loading and vector speed controlled motor with encoder feedback. The machine is floor-standing.
    The test spindle projects downwards and runs in a housing with precision greased for life bearings. The drive motor is connected to a pulley on the test spindle by means of a timing belt and torque limiter pulley.

    Vector control of the motor with encoder feedback provides a variable speed turn-down ratio of 100:1. The motor is four-pole providing a constant torque of 14 Nm up to 1,500 rpm and constant power of 2.2 kW from 1,500 to 2,000 rpm. The motor is capable of providing 50% overload for 30 seconds and therefore a maximum torque of 21 Nm is available for this time. The welding limit in 4-ball EP tests is typically 12 Nm.

    The TE 82 includes the test adapter for sliding four ball tests. This comprises a test reservoir, clamping nut, thrust face and clamping ring for the three test balls, integral torque arm and thermocouple sensor.
    The clamping ring is designed to hold the test balls at the defined contact angle for 4-ball testing. The thread of the clamping nut is designed to provide the correct clamping torque for 4-ball EP testing. The upper ball is placed in a split taper collet, which is a push fit into the spindle taper. The test assembly is also designed to locate on the TE 82/SCOPE Microscope Assembly to allow post-test measurement of wear scars.

    Control and Data Acquisition

    Control and data acquisition are implemented via host PC running COMPEND 2020 Windows compatible software, in conjunction with a Phoenix Tribology USB micro-controller interface.
    Automatic control is implemented via user programmable test sequences. Manual control is implemented using on screen toggles. Data is stored to hard disc in either .csv or .tsv file formats.

    Optional Accessories

    TE 82/RCF Rolling Four Ball Test Assembly

    The TE 82/RCF comprises a test reservoir and precision polished test race. The race is designed to permit the test balls to rotate freely maintaining a defined contact angle with the upper ball fixed in the spindle. In this case there is no torque measurement and the rotation of the adapter is prevented by dowels in the heated pad locating in three holes in the load cross-beam. The upper ball is placed in a split taper collet, which is a push fit into the spindle taper.

    TE 82/KRL Shear Stability Test Adapter

    The DIN 51350-6 and CEC test methods are for the determination of the shear stability of lubricating oils with polymer additives. For this a taper roller bearing is used to shear the fluid. The purpose of the test is to determine the permanent drop in viscosity caused by mechanical stresses under practical conditions.
    The test assembly comprises a test reservoir, clamping nut, integral labyrinth for temperature control, torque arm and thermocouple sensor. The temperature of the lubricant is maintained at 60°C by means of the TE 82/SM Temperature Control Service Module, which is a free-standing temperature controlled water circulating system.

    TE 82/TW Thrust Washer Test Assembly

    The test assembly comprises an electrically heated test bath rated to 200°C and a self-aligning hub adapter for carrying standard thrust washer test samples.

    Thrust Washer: 1.125″ O/D according to ASTM D 3702
    2″ O/D according to ASTM D 3702

    TE 82/SCOPE High Resolution Microscope Assembly

    The TE 82/SCOPE High Resolution Microscope Assembly provides for rapid measurement of the wear scar on the test balls from a sliding four ball test (EP or Wear) without having to removing the balls from the sliding 4-ball test adapter.

    The sliding four ball test adapter fits onto the base of the microscope assembly. The microscope is located on angled holder which is set to the standard contact angle of the balls in the machine. This means that the microscope is normal to the centre of the wear scar.

    The microscope has a rack and pinion focusing system and the wear scar is illuminated by the internal light source. Each ball may be viewed in turn by rotating the test adapter by hand. Two interchangeable eye pieces are provided with internal graticules as follows:

    Range 2 mm with 0.01 mm divisions

    Range 4 mm with 0.02 mm divisions

    The wear scar is measured in one direction and then the eyepiece is twisted 90° to read the second value.

    TE 82/SCOPE-IC Digital Image Capture option allows wear scar images to be logged to PC with subsequent on-screen measurement of wear scar dimensions.


  • Technical Specifications

    Size of Test Balls: 12.7 mm (0.5″) diameter
    Load Range: 10 to 1,000 kg
    Loading Method: Dead Weights
    Rotational Speed: 60 to 2,000 rpm
    Temperature Range: Ambient to 200°C
    Heater Power: 550 W
    Temperature Sensor: k-type thermocouple
    Interface: Phoenix Tribology USB micro-controller interface
    Software: COMPEND 2020
    Motor: 2.2 kW ac
    Automatically Controlled Parameters Rotational Speed
    Test Duration
    Manually Controlled Parameters Load
    Measured Parameters Rotational Speed
    Friction Torque
    Test Duration
    Friction Coefficient
    Electricity: 220/240V, single phase, 50/60 Hz, 7.5 kW
    Floor-standing machine: 900 x 670 deep x 2000 mm high, 300 kg
    Packing Specifications: 2.2 m3, GW 600 kg, NW 450 kg

  • Applications

    additive screening
    extreme pressure properties
    shear stability test
    sliding four ball
    taper roller bearing
    VI improvers

  • Publications


    Paper # 759 Experimental measuring procedure for the friction torque in rolling bearings
    T Cousseau, B Graça, A Campos
    Lubrication Science 2010 Volume 22, Issue 4, p. 133–147
    Paper # 1123  Friction torque in rolling bearings lubricated with axle gear oils
    M Hammami, R Martins, C Fernandes, J Seabra
    Tribology International – Published online: 15 November 2017
    Paper # 1180 A graphene masterbatch for modification of frost-resistant plastic lubricants
    V Pershin, K Ovchinnikov, Z Al-Hilo
    AIP Conference Proceedings Volume 2041, Issue 1
    Paper # 1181 Development of Environmentally Safe Lubricants Modified by Grapheme
    VF Pershin, KA Ovchinnikov, AA Alsilo
    Nanotechnologies in Russia May 2018, Volume 13, Issue 5-6, pp 344-348
    Paper # 1223 Surface treatment of tool steels against galling failure
    P Psyllaki, K Stamatiou, I Iliadis
    MATEC Web Conference Volume 188, 2018
    Paper # 1300   Effects of break in period on the 4-ball wear tests using molybdenum disulphide (MOS2) as EP additives in lithium based grease
    G Nehme, S El-Merhabi, S Ghalambor
    Agricultural Engineering, 2019
    Paper # 1335   Modification of graphene bases for low-temperature (cold-resistant) lubricants
    V Pershin, G Zhumagalieva, A Tkachev
    AIP Conference, 2019 – aip.scitation.org


  • User List


    Launched 1976

    Daimler Puch Co Austria
    ROFA Austria
    Metal Leve Brazil
    Imperial Oil (Esso) Canada
    Imperial Oil (Esso) Canada
    Imperial Oil (Esso) Canada
    DICERSA (Spain) Cuba
    KOVO Czech Republic
    KOVO Czech Republic
    I.F.P. France
    Greek Air Force Greece
    T.E.I. Athens Greece
    T.E.I. Kovala Greece
    T.E.I. Kozani Greece
    T.E.I. Patras Greece
    Bharat Heavy Electricals Co India
    Defence R & D Establishment, Kanpur India
    Indian Institute of Technology, Delhi India
    Steel Authority of India India
    Tata Ltd India
    University of Baghdad Iraq
    Nippon Grease Japan
    Nippon Oil Japan
    Showa Petroleum (Shell) Japan
    Government of the Republic of Korea Korea
    K.P.Q.I. Korea
    Korea Machinery Ltd Korea
    Korea Research Insitute of Chemical Technology Korea
    Kuwait University Kuwait
    Ibadan Polytechnic Nigeria
    University of Nigeria, Nsukka Nigeria
    Minho University Portugal
    Qatar Ministry of Electricity & Water Qatar
    Qatar University Qatar
    Technology Inventions Russia
    CEPSA Spain
    Mining Institute Spain
    Scientific Research Centre, Damascus Syria
    Chinese Petroleum Company Taiwan
    Admiralty Materials Laboratory, Poole UK
    Brunel University, London UK
    Castrol Ltd, Pangbourne UK
    Ethyl Petroleum Additives Ltd, Bracknell UK
    Liverpool Polytechnic (John Moores) UK
    National  Gas Turbine Establishment, Pyestock UK
    National Coal Board UK
    National Engineering Laboratory, East Kilbride UK
    Prices Chemicals UK
    Rolls Royce Ltd UK
    Shell Research Ltd, Thornton UK
    Ultraglide, Angus UK
    Hooker Chemicals Corporation USA
    Roxana Corporation USA

    TE 82 BALL MACHINE (Post-2011)Launched 2011

    Idemitsu Japan
    Sanyo Furue Science Co Ltd Japan
    Tonen Japan
    Bulls-One Korea
    Soctrade Ltd Russia

  • Download the Machine Leaflet