Friction & Wear Tester by Reichert M2

Product group Lubricant

User group Cooling Lubricant, Gear Oil, Hydraulic Fluid, Light Oil, Lube Oil, Lubricating Oil, Oil, Transmission Fluid

Scope Beside fluids, pasty substances, e.g. greases can be tested. In this case the substance must be brought incontact with the slip ring during the run, using a glass rod.

Beside other substance related or for specific applications modified methods, 3 standard procedures arerecommended:

Method IDetermination of total activityThis method allows to make a statement about the build-up time of a load carrying film and its carryingcapacity, considering the evaluation of meter of noise.

Method IIDetermination of the strength of the formed reaction filmThis method determinates the adhesive strength of the formed reaction film and the additional activation(degree of activation).

Method IIIDilution test by ReichertThe dilution test is to be used for high-active substances forming a very small abrasion area (less than 3 mm²)and building up a load bearing film very quickly as shown by a meter of noise detection of 0.

All methods require a run-in slip ring.

The testing machine basically consists of a rigidly-mounted test roll,which is pressed against a revolving friction wheel by means ofleverage. The friction wheel is immersed with its lower third in thesample under test. Its rotating speed is of such a rate that asufficient quantity of lubricant will always get to the contact surfaceof the test roll and the friction wheel.

Due to the crosswise arrangement of the axles, an elliptical wearingsurface will be formed, the size of which will grow corresponding tothe operating time elapsed.

The extension of the wearing surface results in a decrease of thespecific surface pressure between friction wheel and test roll,whereby a load-carrying lubricant film will be built-up.

This can be recognized by a sudden discontinuation of the grindingnoise. The size of the clearly-marked wear surface, from which theload capacity of the lubricant film can be calculated, and theresultant friction length read from a counter device gives a rate forthe assessment of the liquid under examination.

ApplicationsOnly some examples of the wide variety of application purposes ofthis instrument will be listed below.

a) Inspection of regularity of lubricants with respect to their loadcapacity. Particularly suitable Method I.

b) Determination of the "emaciation€ (Reichert value increase) ofgear oils and cutting solutions. Particularly suitable Method II.

c) Selection of suitable additives when developing or improvingcutting oils and for solving similar tasks. Particularly suitable MethodIII.

d) Optimizing combinations of lubricants and bearing materials.

Friction and Wear Tester "Reichert M2"Friction & Wear Tester with variable rotational speed for the examination of the load carryingcapacity and wear reducing properties of lubricants and cutting fluids.

consisting of:a base plate with electric motor, double lever system 1:20, load weight 1500 to press test roll onfriction wheel and oil cup with water jacket for temperature control.

Further a control unit with digital indication of friction length and speed, and that allows to eithervary the speed infinitely over the range of 500 to 1500 min-1, complete with set of spanners andoperating instructions.

Power consumption: 1500 W

Technical Data

Sample volume:Approximately 25 ml

Test specimen:

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Test roll and friction wheel in crosswise position of their axles

Friction speed at 1000 rpm:1.83 m/sec

Time requirement at 1000 rpm:54,57 sec for 100 m friction length

Ring and roll material:Hardened steel (other materials upon request)

Standard pressure (Hertzian Stress):1471.5 MPa at state of rest and a standard load of 1.5 kg

Load:294 N at the end of the lever 1:20

Type of friction:Sliding friction

Rates:Wear surface in mm2 and grinding noise (friction length)

Statements:Load pressure capacity and adhesive power of the lubricant film

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Main Unit

15-0035 Friction and Wear Tester "Reichert M2"Power supply: 230 V, 50/60 Hz, 750 W

Options & Accessories

15-0087 Analysis Unitfor Reichert with CCD-Camera and PC connection

The analysis unit allows the fast and objective measurement of wear marks of Reichert specimen, as well asfor other methods, but then special accessories are necessary.

The unit is computer-based and was developed for analysis of the Reichert Friction and Wear test. It isfurthermore suitable for the analysis of wear marks of various other testing methods.

Technical Data:Dimensions (L x W x H): 250 x 150 x 200 mmAccuracy of the measurement: 0,10 mmRepeatability: 0,04 mm

- Connection to any PC via USB- Software based on MS-Access (PC not included)

15-0009 Dial-Gaugewith extended probe to check radial displacement

Technical Data:Range: 10 mmDivision: 0.01 mmScale diameter: 50 mmShaft diameter: 8 mmProbes: 8 and 20 mm

15-0011 Load Weight, 500 g

15-0012 Load Weight, 1000 g

15-0017 Test Rolls, pack of 100, brass

15-0018 Test Rolls, pack of 100, copper

15-0019 Adapter for use of friction wheels 15-0023(to modify test rigs made before June 1990)

15-0020 Test Rolls, aluminum (Al Mg Si), pack of 100

15-0024 Reading Lens, to measure the size of the wear surface

15-0027 Marking Pencil for marking the test rolls

15-0028 Measuring Microscopeto measure wear spots with an axis longer than 10 mm

Supplied with:rest for the test rolls, 10 magnificationMeasuring accuracy: 0.05 to 0.1 mm.

15-0021 Test Rolls, steel, pack of 50

15-0023 Friction Wheels, steel, pack of 20

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Spare Parts

15-0010 Oil Cup, double walled, with hose nipples

15-0013 Load Weight, 1500 g

15-0026 Spanner, 13 mm

17-0461 Allen Key, 4 mm

Order GuidelineMinimum equipment: 1 x 15-0035 + Measuring Device 15-0087 or

15-0024, 15-0027, 15-0028Spares (approx. 1 year): 15-0010Additional requirements: 15-0021, 15-0023

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