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Ring friction and wear tribometer - high load

Use of device

mechanical-dynamical analysis of drive or friction elements according to the principle of ring/ring, in particular with liquid interfacial media and at different temperatures

Basic function

determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs

Result of analysis

high resolution friction torque signal as an indicator for the existence and intensity of stick-slip

Goal of analysis

analysis of the stick-slip of friction disc systems

Technical specification

drive torque: < 700 Nm; normal load: < 40,000 N; rotational frequency: 0 - 300 rpm; interfacial media flow: < 1 l/min; temperature control range: -30 - +130 °C

Sample requirement

disc diameter: < 150 mm, thickness of the disc system: < 30 mm



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)
Nagl, Daniel




Ring friction and wear test rig - low load

Use of device

mechanical-dynamical analysis of drive or friction elements according to the principle of ring/ring, in particular with liquid interfacial media and at different temperatures

Basic function

determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs

Result of analysis

friction torque, rotational frequency, temperature

Goal of analysis

formation of reaction layers and stick-slip at friction materials (brakes, gears)

Technical specification

rotational frequency: < 1000 rpm; normal load: < 4000 N; temperature: RT - 150 °C

Sample requirement

disc diameter: < 150 mm



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Ring friction and wear test rig - high temperature

Use of device

determination of coefficient of friction and wear of surface layers using ring/ring or pin/disk configuration under dry friction and at different temperatures

Basic function

determination of the friction torque and of the friction torque oscillations between two, with a relative speed, on each other rotary sliding discs at temperature < 1000 °C

Result of analysis

friction torque, sliding distance, temperature, wear height

Goal of analysis

basic research in high temperature slide bearings or ceramic layers

Technical specification

rotational frequency: < 1000 rpm; normal load: < 1500 N; temperature (testing chamber): RT - 1000 °C

Sample requirement

disc diameter: < 200 mm, height of tribosystem: up to 40 mm



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Reciprocating friction and wear tribometer (SRV) with with inclinable and air-conditionable test chamber

Use of device

standard method for determination of lubrication ability; standards: DIN 51834- 1 to 8, ASTM D5706, ASTM D5707, ASTM D6425, ASTM D7421 & other internal protocols

Basic function

the counter body oscillates reciprocating with a defined normal force, frequency and stroke length on a base body; e. g., a lubricant to be investigated is distributed on the contact surface of the specimens

Result of analysis

coefficient of friction; high resolution friction analysis; wear height; wear track on the specimens; acustic emission, electr. contact resistance

Goal of analysis

model analysis for comparative determination of friction and wear characteristics of lubricants

Technical specification

normal load: 3 - 2500 N; stroke: 0.1 - 4 mm; frequency: 1 - 511 Hz (dependent on stroke lenght); temperature: RT - 290 °C

Sample requirement

ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Reciprocating friction and wear tribometer (SRV) with rotational test chamber

Use of device

standard method for determination of lubrication ability; standards: DIN 51834- 1 to 8, ASTM D5706, ASTM D5707, ASTM D6425, ASTM D7421 & other internal protocols

Basic function

the base body oscillates reciprocating with a defined normal force, frequency and stroke length on a flat counter body; the lubricant to be investigated is distributed on the contact surface of the specimens

Result of analysis

coefficient of friction, wear height, wear track on the specimens

Goal of analysis

model analysis for comparative determination of friction and wear characteristics of lubricants

Technical specification

normal load: 1 - 2000 N; stroke: 0.1 - 4 mm; frequency: 1 - 511 Hz (dependent on stroke lenght); temperature: RT - 290 °C

Sample requirement

ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Reciprocating friction and wear tribometer (SRV) with rotation modul

Use of device

standard method for determination of lubrication ability; standards: DIN 51834- 1 to 8, ASTM D5706, ASTM D5707, ASTM D6425, DIN D7421 & other internal protocols

Basic function

the base body oscillates reciprocating with a defined normal force, frequency and stroke length on a flat counter body; the lubricant to be investigated is distributed on the contact surface of the specimens

Result of analysis

coefficient of friction (CoF); high resolution CoF signal of an oscillation; wear height; wear track on the specimens

Goal of analysis

model analysis for comparative determination of friction and wear characteristics of lubricants

Technical specification

oscillation: normal load: 10 - 2000 N; stroke: 0,1 - 4 mm; frequency: 1 - 511 Hz (dependent from stroke); temperature: RT - 290 °C; rotation: normal load: 10 - 2000 N; rotational frequency: 1 - 2000 rpm; radius: 0 - 40 mm; temperature: RT - 180 °C

Sample requirement

ball-on-disc (point contact), cylinder-on-disc (line contact), ring-on-disc (area contact)



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Universal Mechanical Tester Tribolab

Use of device

determination of coefficient of friction and wear of different materials or surface layers; simulation of the tribological behaviour regarding to point, line or area contact (dry or lubricated)

Basic function

the base body is translational oscillating with a defined frequency and stroke lenght; the normal force is being achieved from above (vertical) with the antibody using a spindle with a force sensor and a flat spring

Result of analysis

coefficient of friction, wear height, wear track on the specimens

Goal of analysis

model analysis for comparative determination of friction and wear characteristics

Technical specification

Normal load: 1 - 1000 N; stroke: 0.1 - 25 mm; frequency: 0.1 - 60 Hz; (dependent on stroke length); temperature: RT (heatable with heating cartridge)

Sample requirement



Contact

Stoiber, Ulrich Dipl.-Ing.




Reciprocating tribometer 2

Use of device

simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media

Basic function

the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body

Result of analysis

friction force; normal load; oscillation frequency; sliding distance

Goal of analysis

optimisation of sliding paths, linear guides, etc.

Technical specification

normal load: 500 - 8000 N; stroke: 50 - 350 mm

Sample requirement

test principle: ball/plate, block/plate



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Reciprocating tribometer 1

Use of device

simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media

Basic function

the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body

Result of analysis

friction force; normal load; oscillation frequency; sliding distance

Goal of analysis

optimisation of sliding paths, linear guides, etc.

Technical specification

oscillation frequency: 0 - 3 Hz; normal load: 60 - 2000 N; stroke: 10 - 80 mm

Sample requirement

test principle: ball/plate, block/plate



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Reciprocating tribometer 3

Use of device

simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in dry run or with different interfacial media

Basic function

the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body

Result of analysis

friction force; normal load; fequency of movement; sliding distance

Goal of analysis

optimisation of sliding paths, linear guides, etc.

Technical specification

Sample requirement

test principle: ball/plate, block/plate



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Slinding corrosion tribometer

Use of device

simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in a corrosive liquid

Basic function

the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a, in the direction of movement, flat counter body; during the test a corrosive environment for metallic materials is present in the test chamber

Result of analysis

Goal of analysis

Technical specification

Sample requirement

test principle: ball/plate, block/plate



Contact

Trausmuth, Andreas DI(FH)DI Drmont




Slinding corrosion Tribometer

Use of device

simulation of translatory-oscillating relative motion between two test samples; analysis of the tribological behaviour of material combinations in a corrosive liquid

Basic function

the base body, loaded by the normal force, rolls/slides oscillates reciprocating with a defined frequency and stroke length on a (in the direction of movement) flat counter body; during the test a corrosive environment for metallic materials is present in the test chamber; the test chamber is configured as a electrochemical cell

Result of analysis

Goal of analysis

Technical specification

Sample requirement

test principle: ball/plate, block/plate



Contact

Trausmuth, Andreas DI(FH)DI Drmont




Microload tribometer

Use of device

tribological testing at low forces (mN)

Basic function

pin-on-disc test rig; linear-oscillating or rotating

Result of analysis

friction force at low loads

Goal of analysis

tribological behaviour at low loads

Technical specification

normal Load: 10 mN - 200 mN; rotational and oscillating movement; sample size: d < 20 cm

Sample requirement

test principle: ball/plate, block/plate



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)
Rodriguez Ripoll, Manel Dipl.-Ing.(FH)




Precision bearing test rig 2

Use of device

simulation of rotating relative motion between two test samples; analysis of the tribological behaviour of material/lubricant combinations in hydrodynamic lubrication condition

Basic function

a shaft rotates in a (sintered) bearing with a defined specific pressure and frequency

Result of analysis

friction torque; sliding path; temperature

Goal of analysis

Technical specification

normal load: < 200 N; rotational frequency: < 500 Hz; temperature: RT - 150 °C

Sample requirement

bearing inner diameter 3 - 12 mm, block: up to 10 x 10 x 15 mm³



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Pin-on-Disc tribometer - horizontal loading

Use of device

friction and wear investigations with ball- or pin-shaped specimens: standard: DIN ISO 7148-A

Basic function

friction and wear investigations of a disc shaped base body against a pin, ball, or plate shaped counter body; the vertically placed disc rotates; the load is applied horizontally through the adaptable counter body holder

Result of analysis

friction force; normal force; sliding distance; wear

Goal of analysis

friction and wear behaviour in sliding contacts

Technical specification

sliding speed: 0.1 - 15.0 m/s; normal load: 5 - 80 N

Sample requirement

disc: d < 150 mm x 10 mm, pin: d = 3 to 8 mm, ball: d = 10 mm



Contact

Jakab, Balazs DI




Pin-on-Disc tribometer - vertical loading

Use of device

friction and wear investigations with ball- or pin-shaped specimens; standard: DIN ISO 7148-A

Basic function

friction and wear investigations of a disc shaped base body against a pin, ball, or plate shaped counter body; the horizontally placed disc rotates; the load is applied vertically through the adaptable counter body holder

Result of analysis

friction force; normal force; sliding distance; wear

Goal of analysis

friction and wear behaviour in sliding contacts

Technical specification

sliding speed: 0.1 - 16.0 m/s; normal load: 5 - 80 N

Sample requirement

disc: d < 110 mm x 10 mm, pin: d = 3 to 6 mm, ball: d = 10 mm



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Brugger lubricant tester

Use of device

Ssandard method for determination of lubrication ability, Norm: DIN 51347-1 and -2

Basic function

the rotating ring - on which the lubricant will be applied before the test starts - produce on the cylindrical specimen, with a defined normal force and rotation frequency, an elliptical wear zone

Result of analysis

lubricant load-carrying capacity according to Brugger, based on the wear zone on the cylindrical specimen

Goal of analysis

Technical specification

standard DIN 51347-1 and -2; normal load: 400 N; rotational frequency: 960 rpm

Sample requirement

standard DIN 51347-1 and -2



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




Pin-on-Drum Modul

Use of device

abrasion of polymers with corundum paper as counterbody; temperature of up to 200°C are possible; standard: ISO4649

Basic function

a flat-shaped base body is pressed against a roll, on which abrasive paper is mounted

Result of analysis

mass loss

Goal of analysis

determination of wear of polymers at room temperature or elevated temperatures

Technical specification

add-on modul to the break disc tribometer; abrasiv: standardized corundum-paper; wear distance: 40 m; normal load: 10 N (standard); up to 50 N; temperature: RT to 200 °C

Sample requirement

sample geometry: diameter 16 mm; thickness: min. 3 mm



Contact

Molnar, Wolfgang DI




Permeability measurement device 3

Use of device

investigations of the permeability of porous materials (medium: compressed air)

Basic function

for characterisation of the open porosity pressured air is pressed through the porous structure of the specimen (e.g. friction disc, bushing); in case of a compressible specimen, the force-dependent decrease in thickness is determined; the automated measurement process enables a high number of measuring points

Result of analysis

Goal of analysis

Technical specification

Sample requirement



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)




tapping unit

Use of device

simulation of thread forming process; analysis of the tribological behaviour of material and lubricant combinations

Basic function

a thread former makes a inner thread by deforming the material, without material loss

Result of analysis

torque of the forming process

Goal of analysis

optimisation of service life and energy demand of the thread forming process

Technical specification

Sample requirement



Contact

Lebersorger, Thomas Dipl.-Ing.(FH)