Complaint
Automatic four-ball machine grease anti-wear tester is in the form of sliding friction, under the condition of high point contact pressure, mainly used to assess the bearing capacity of lubricant. Including the maximum clamping load Pb, sintering load Pd, comprehensive wear value ZMZ and other three indicators, in the practical application, according to the different uses of lubricants can choose different evaluation indicators. The four ball friction testing machine can also do lubricant long-term wear test, determination of friction coefficient, record friction and temperature curve. End friction and material simulation tests can also be performed using special accessories. The design principle of the machine is based on the loading stability of the lever four-ball machine combined with the loading characteristics of the servo valve, through the servo motor, air spring, closed-loop control software to realize automatic zeroing, automatic loading, automatic holding, automatic test, automatic unloading, automatic measurement of the diameter of the grinding spot and take photos, one-key operation, Data storage one-key save test speed, small error, good repeatability, no pollution, no noise, high efficiency.
Product name Automatic four ball machine
The test items are mainly used to evaluate the bearing capacity of lubricants
Simple technical characteristics or parameters By servo motor, air spring, closed-loop control software to realize automatic reset, automatic loading, automatic stay, automatic test, automatic unloading and automatic measurement spot diameter and take photos, a key operation, the data storage is a key save the test speed, small error, good repeatability, no pollution, no noise, high efficiency.
LR-0202 Four Ball Wear Testing Machine Friction and Wear Tester Friction Testing Equipment
Standard
GB/T12583-98, lubricant extreme pressure performance determination method (four ball machine method); GB3142-82, lubricant bearing capacity determination method (four ball method); SH/T0189-92, Determination of antiwear properties of lubricating oil (four-ball machine method); SH/T0202-92, Grease extreme pressure performance measurement method (four-ball machine method); SH/T0204-92, Determination of antiwear properties of grease (four-ball machine method). ZBE34007-87 (Four ball test method for wear resistance) |
LR-0202 Four Ball Wear Testing Machine Friction and Wear Tester Friction Testing Equipment
Main technical parameters:
No. Item Name Technical specifications
1 test force
1.1 Axial test force working range of 10 ~ 10000N
1.2 The relative error of the test force is ± 1%
1.3 When the test force is long, the value error of ± 1% F.S will be maintained automatically
2 Friction torque
2.1 Friction torque measurement range: 0 ~ 13500N.mm
2.2 Relative error of friction torque values ± 3%
3 Spindle speed
3.1 Frequency conversion speed control range of spindle 10 ~ 2000r/min
3.2 Spindle speed error ±5r/min
4 Oil box stroke > 45mm
5. The taper of the spindle inner hole is 1:7
6. Heating system of testing machine
6.1 Heater Operating temperature range: Room temperature ~ 250 ° C
6.2 Temperature control accuracy ≤2ºC
7. testing machine spindle control
7.1 Testing machine time display and control range 1 ~ 99999s or 1-99999min
7.2 Testing machine revolution display and control range 999999999
7.3 Maximum output torque of main motor of test machine 2.3N.m
8. About 10ml of oil should be used in one test
9.Standard steel ball diameter ∅12.7
10. The external dimension of the testing machine (length × width × height mm) is about 1160×750×1640
11 .The net weight of the testing machine is about 400kg
12.Rated power of 12 testing machine 5.5KW
