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Tribometer Instruments | Lab Services | Linear | Application Notes

Rotational Wear Friction Process:
Rotational wear friction test reproduces the rotational motion found in many real-world tribology mechanisms. A flat, pin or ball tip is loaded onto a test sample with a precise weight and at a specific position from the center of rotation. As the sample starts rotating, the tip creates a rotational wear track. Friction coefficient is accurately measured by the deflection of a load cell, precisely calibrated. Because of the integrated 16bit external position encoder, friction can be displayed for any specific position or zone for each cycle pass. Additionally, the internal 20bit speed encoder ensures smooth or quick changes of speed of rotation from 0.01 to 5000rpm during a single test providing accurate friction coefficient versus speed. The speeds down to 0.01rpm are essential to study friction in the static zone and to better understand the transition between static and kinetic coefficient of friction.  Wear rates for the sample can be calculated from 2D profile at chosen positions or from the actual full 3D profile of the entire wear track. A spiral test can be performed with constant linear speed (changing rotational speed) at any point for comparable friction data across the full length of the test.



• ASTM G99

• DIN 50324

• ASTM D3702

• ASTM D2266

• ASTM D4172

• ASTM G132


Properties Analyzed During Rotational Wear Friction Test:

• Friction Coefficient

• Wear Rates

• Failure Points

• Electrical Resistance

• Lubrication & Corrosion Studies

• Friction vs Speed

• Stribeck Curve

• Scratch Hardness

• Static Coefficient of friction and many others


Rotational Wear Friction Test Software Features:

• Continuous Stribeck Curve

• Export Raw Data and Images

• Real Time Display

• Automatic Reporting

• Multi-Language Support

• Scratch Hardness Calculation

• Macros with variation of speed

• Spiral Test at constant linear speed

• Fixed Cycle View

• 360° Cycle Compare View

• Automatic Wear Calculation

• Semi-Linear (microns or degree)

• Variable Speed Control during Test and many others


Tips: (Diamond, WC, Rubber and many other materials):

• 3, 6, 10 and 25mm ball

• Custom ball sizes

• Custom Pins

• Flat Plate

• Custom geometries


Environmental Conditions:

• Fully Removable 1200°C Oven

• Cooling down to – 150°C

• Liquid Cup & Liquid Heating to 150°C

• Lubrication Drop by Drop

• Humidity Control

• Various Gases

• Vacuum


Sample(s) Holders:

• Standard Clamp

• Clip Mounting on Base Plate

• Custom Holders for varied geometries


Rotational Testing Modes:

Temperature Tribology Testing

Liquid Tribology Testing