The MRS-10G lever type four ball friction and wear testing machine is mainly used to evaluate the bearing capacity of lubricants in the form of sliding friction under high point contact pressure conditions. It can evaluate the friction coefficient and wear spot diameter of lubricants, including the maximum non bite load Pb, sintering load Pd, comprehensive wear value ZMZ, long-term anti-wear D value, and other multiple indicators. In practical applications, different evaluation indicators can be selected according to the various uses of lubricants. According to the standard calibration of oil by Beijing Institute of Stone Science, the stability and repeatability are good. This machine is mainly suitable for lubricating oil evaluation, and is widely used in the field of tribology, petroleum, chemical, energy and other industries, as well as in colleges, research institutes and other units.
2. Applicable standards
ASTM D2783-2003 (2009) Lubricating Oil Four Ball Load Capacity Four Ball Method
ASTM D2266 01-2015 Test Method for Wear Resistance Characteristics of Lubricating Greases (Four Ball Method)
ASTM D4172-2010 Standard Test Method for Wear Resistance of Lubricants (Four Ball Method)
ASTM D2596-2015 Standard Test Method for Determining Extreme Pressure Characteristics of Lubricating Greases (Four Ball Method)
ASTM D5183-05 (2016) Test Method for Determining the Friction Coefficient of Lubricants Using a Four Ball Abrasion Tester
ASTM D6300-2016 Petroleum Product Lubricant Test Method - Determination of Accuracy and Deviation Data - Implementation Code
GB/T12583-1998 Determination of Extreme Pressure Properties of Lubricants (Four Ball Method)
GB/T 3142-2019 Determination of Bearing Capacity of Lubricants (Four Ball Method)
NB/SH/T 0189-2017 Determination of Wear Resistance of Lubricating Oil (Four Ball Method)
SH/T 0202-1992 Determination of Extreme Pressure Properties of Lubricating Greases (Four Ball Machine Method)
SH/T 0204-1992 (2004) Determination method for anti-wear performance of lubricating grease (four ball machine method)
SH/T 0762-2005 Determination of Friction Coefficient of Lubricating Oil (Four Ball Method)
BS EN ISO 20623-2018 Testing methods for extreme pressure and anti-wear properties of lubricants for petroleum and related products
NB/SH/T0845-2010 Determination of viscosity and shear stability of lubricants (KRL method) - requires special KRL
1. Drive mode: direct drive, reducing the impact of transmission links on spindle speed and controlling errors
2. Loading method: lever weight, with fully automatic weight lifter, minimum weight 0.05N, convenient and accurate
3. Test load: light load and heavy load, can be selected according to different lever ratios of 1:10-1:20
4. Loading range [N]: up to 10000, freely set loading from 2-1000kg
5. Pre tightening force of clamp: Customized standard spring clamp to meet standard requirements (no impact on light and heavy loads)
6. Mechanical performance and accuracy: meet the requirements of JB/T9395 standard
7. Power output: Imported Panasonic servo motor is used, which is conducive to experimental adjustment and data precision control
8. Spindle speed [r/min]: 0-3000, meeting the requirements of the new standard GB3142-2019
9. Heating range of oil cup [℃]: room temperature~300
10. Pressure sensor [kg]: imported from the United States with transmission force 5 and 50; PB test must be able to measure friction force and friction coefficient
