1. Function

MRS-10A Computer Control Four Ball Friction Testing Machine, in the form of slide friction, is used for the loading capacity evaluation of lubricants in the high pressure point contact condition. It can test the maximum non seizure load PB, sintered load PD and composite wear value ZMZ of lubricants. It can record frictional force and temperature curves. It also can measure the dimension of the wear scar and display the wear scar on the PC screen.

 

2.Standards

GB/T12583-98 
Lubricant extreme pressure performance measurement (four ball machine method)

 

GB3142-82 
Lubricant bearing capacity measurement method (four goals)

 

ASTM D 4172-82,SH/T0189-92 
Lubricant anti-wear performance measurement (four ball machine method)

 

SH/T0202-92 
Extreme pressure grease performance measurement (four ball machine method)

 

GB3142-2019

Testing method for load carrying capacity of lubricants(four ball method)

 

SH/T0189-2017

Testing method for Abrasion Resistance of lubricating oils(four ball machine method)

 

SH/T0204-92 
Grease anti-wear performance measurement (four ball machine method)

SH/T0762-2005

Testing method for Coefficient of friction of lubricating oils

 

3. Technical parameters

Model No.	MRS-10A
Range of test force	60N-10KN
Keep indication error for long time of test force	±1%F.S
Maximum friction	300N
Measurement error of friction force	±3%
Range of spindle speed	200~2000r/min
Spindle speed error	±10 r/min
Temperature range	Room temperature~200°C
Accuracy of temperature control	±2°C
Time Range	1s~99hours
Range of revolution	1-9999999 r
Diameter of test steel ball	Φ12.7mm