Technical Specifications
- Speed: 300 to 3000 rpm (High speed option is available)
- Load: 100 to 10,000 N
- Friction Force: 0 to 200 N
- Friction Torque: 0 to 16 Nm
- Temperature: Up to 90 deg C (200 deg C is optional)
Options
- Pneumatic loading
- KRL shear stability tester attachment
- Rolling fatigue attachment
- Thrust washer attachment
- High temperature ball pot (ambient to 200 °C)
- Image acquisition system
Test Standards
EXTREME PRESSURE PROPERTIES
- ASTM D2783: Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Fluids (Four-Ball Method)
- ASTM D2596: Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method)
- IP 239: Determination of extreme pressure and anti-wear properties of lubricating fluids and greases - Four ball method (European conditions)
- DIN 51350-2: Testing of lubricants - Testing in the four-ball tester - Part 2: Determination of welding load of liquid lubricants
- DIN 51350-4: Testing of lubricants - Testing in the four-ball tester - Part 4: Determination of welding load of consistent lubricants
- ISO 20623:2017: Petroleum and related products — Determination of the extreme-pressure and anti-wear properties of lubricants — Four-ball method (European conditions)
WEAR PREVENTIVE PROPERTIES
- ASTM D4172: Standard Test Method for Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method)
- ASTM D2266: Standard Test Method for Wear Preventive Characteristics of Lubricating Grease (Four-Ball Method)
- ASTM D5183: Standard Test Method for Determination of the Coefficient of Friction of Lubricants Using the Four-Ball Wear Test Machine
- DIN 51350-3: Testing of lubricants - Testing in the four-ball tester - Part 3: Determination of wearing characteristics of liquid lubricants
- DIN 51350-5: Testing of lubricants - Testing in the four-ball tester - Part 5: Determination of wearing characteristics for consistent lubricants
SHEAR STABILITY OF OIL*
- CEC L-45-A-99: Viscosity Shear Stability of Transmission Lubricants (KRL Taper Roller Bearing Rig).
- DIN 51350-6: Determination of shear stability of polymer-containing lubricating oils by the Shell four-ball tester.
FATIGUE PROPERTIES AND THRUST WASHER TEST*
- IP 300: Determination of rolling contact fatigue failure - modified four ball tester machine method.
- ASTM D3702: Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self-Lubricated Rubbing Contact Using a Thrust Washer Testing Machine
* Denotes optional modules
Applications
- Determine extreme pressure (EP), wear preventive (WP), frictional and fatigue properties of oils and greases.
- Test the quality of produced oil and verify the quality of oil procured from suppliers.
- Test wear preventive properties of nanoparticles derived from carbon metal oxide, sulfides and nanocomposites.
- Compare and estimate the deterioration of lubricant quality by comparing fresh and used oil.
- Test polymeric viscosity modifiers to achieve better shear stability and minimize viscosity loss.
- Lubrication efficacy of biodegradable / vegetable oils compared to mineral based oils.
More.