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.
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.
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 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.
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 Temperature Test Duration Manually Controlled Parameters Load Measured Parameters Rotational Speed Friction Torque Temperature Test Duration Friction Coefficient Services Electricity: 220/240V, single phase, 50/60 Hz, 7.5 kW Installation Floor-standing machine: 900 x 670 deep x 2000 mm high, 300 kg Packing Specifications: 2.2 m3, GW 600 kg, NW 450 kg
additive screening extreme pressure properties shear stability test sliding four ball taper roller bearing VI improvers
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
TE 82 HIGH SPEED FOUR BALL MACHINE (Pre-1996)
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
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