Main Application
This machine determines the bearing capacity of lubricant in form of sliding friction under much high point contact pressure, including maximum non-seizure load PB, sintering load PD,composite wear value ZMZ etc. This machine can do lubricant long time wear resistance test to determine the coefficient of friction.
Applicable Standards
GB/T12583-98 lubricant extreme pressure performance measurement (four ball machine method)
GB3142-82 lubricant bearing capacity measurement method (four ball method)
SH/T0189-92 lubricant anti-wear performance measurement (four ball machine method)
SH/T0202-92 extreme pressure grease performance measurement (four ball machine method)
SH/T0204-92 grease anti-wear performance measurement (four ball machine method)
Technical Parameters
No. | Item | Technical Parameter |
1 | Test force range (stepless adjustable) | 60N-10kN |
2 | Relative error for test force value | ±1% |
3 | Test force long time keeping value error | ±1%F.S |
4 | Friction test range | 0-300N |
5 | Friction test error | ±3% |
6 | Main spindle rotational speed range (stepless adjustable) | 200-2000r/min |
7 | Main spindle rotational speed error | ±10 r/min |
8 | Friction pair temperature control range | Room temperature-200℃ |
9 | Friction pair temperature control error | ±2℃ |
10 | Test time control range | 1 seconds - 99 hours |
11 | Main spindle rotational speed control range | 1-9999999revolutions |
12 | Dimension | 1160mm×750mm×1640mm |
13 | Net weight | About 400kg |
14 | Testing steel ball | φ12.7mm |
