SGW-10A computer control automatic 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 nonseizure load PB, sintered load PD and composite wear value ZMZ of lubricants .The four-ball friction test machine can also be used as lubricant for long time wear resistance test, determination of friction coefficient, recording friction and temperature curve. It also can measure the dimension of the wear scar and display,measurement and recording the wear scar on the PC screen.The wear resistance of metallic materials or non-metallic materials can also be studied with special attachments.

Patent NO：ZL201820682290.6,ZL201830226679.5,ZL20180682131.6

With many patents, our company has advanced R & D technology and keen innovation ability. The product has high precision, easy operation, easy maintenance and no oil source pollution.

ASTM D 4172 Standard Test Method for wear resistance of lubricating fluid (four ball method)

ASTM D2266-01 Test method for friction and wear of lubricating oil (four-ball method)

ASTM D2783-2003 (2009) four-ball bearing capacity of four balls of lubricants

ASTM D2596-2010 Test method for extreme pressure performance of grease (four ball method)

GB/T12583-98 Determination of extreme pressure performance of lubricants (four-ball machine method)；

GB3142-82，Determination of the carrying capacity of lubricants (four-ball method);

SH/T0189-92，Determination of oil abrasion resistance (four-ball machine method);

SH/T0202-92，The method of determination of extreme pressure of grease (four-ball machine method);

SH/T0204-92，Determination of resistance to abrasion of grease (four-ball machine method).

Two. Technical parameters

NO	The project name	Technical indicators
1	Test force
1.1	Axial test force range	40～10000N
1.2	Relative accuracy of test force display.	±1％（0.5）
1.3	Accuracy of testing force display for a long time	±1％F.S（0.5）
1.4	Loading way	Full automatic loading (non-hydraulic, state related patent)
2	Friction torque
2.1	Measuring range of friction torque.	0～13500N.mm
2.2	Relative Accuracy of the friction torque display	±2％
3	Spindle speed
3.1	Spindle frequency conversion speed range.	10～2000r/min
3.2	Accuracy of Spindle speed	±5r/min
4	The oil box stroke	＞45mm
5	Spindle bore taper.	1：7
6	The heating system
6.1	Heater working temperature range	Room temperature～250℃
6.2	Accuracy of temperature	≤2℃
7	Testing machine control
7.1	The control mode	Whole process touch screen control (dual function)
7.2	Test time display and control range	1～99999s or 1-99999min
7.3	Test machine revolution display and control range	999999999
7.4	Test machine main motor	Taiwan dong yuan servo motor
8	A test oil quantity	About 10ml
9	Diameter of special standard steel ball for test	12.7
10	Test machine size（L×W×Hmm）	About 1160×750×1640
11	Weight	About 400kg
12	Rated power of testing machine	5.5KW

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