Lever Type Four Ball Friction Testing Machine

Our lever-type four ball friction tester are tools used for evaluating the performance of lubricants under high-pressure conditions, specifically their load-bearing capacity and resistance to wear. By simulating extreme point contact pressure with sliding friction, the testerhelps determine how well lubricants can protect gears and other mechanical components under stress. It measures key factors such as maximum non-seizure load (PB), sintering load (PD), and the comprehensive wear value (ZMZ), offering valuable insights for lubricant formulation and product development. These tests are essential for ensuring that lubricants meet the rigorous demands of modern industrial machinery, where reliable lubrication is critical for minimizing downtime and reducing maintenance costs.

Technical Specifications

Max. test force	10000N
Relative accuracy (below 4% of test force)	±5N
Relative accuracy (above 4% of test force)	±1％
Test force loading method	Manual loading of weights
Force holding mechanism	Self-balancing backlash-free guiding
Max. friction force	200N
Relative accuracy of friction force	±2%
Heater working temperature range	Room temperature to 250℃
Temperature control accuracy	±3℃
Max. speed	3000rpm (stepless adjustable)
Speed control accuracy	< 15r/min
Test oil quantity	10ml
Diameter of test steel ball	Ø12.7

Motor power	2.2kW
Time control	Automatic stopping when time setting range is exceeded
Friction control	Automatic stopping when friction setting range is exceeded
Test time display and control range	1s-9999min
Dimensions (L×W×H)	1300×490×1220mm
Wear scar measurement microscope	Electronic measurement system
Magnification of measurement microscope	25× 200×
Wear scar measurement range	0-10mm
Wear scar measurement accuracy	0.01mm
Digital CCD probe pixel	3,000,000 pixel
Wear scar measurement software	Automatic capture of wear scar, with average values

Standards

ASTM D 4172
Standard Test Method for Wear Resistance of Lubricating Fluid (Four-Ball Method)
ASTM D2266-01
Standard Test Method for Friction and Wear of Lubricating Oil (Four-Ball Method)
ASTM D2783
Standard Test Method for Evaluation of Load-Bearing Capacity of Lubricants (Four-Ball Method)
ASTM D2596
Standard Test Method for Measurement of Extreme-Pressure Properties of Lubricating Grease (Four-Ball Method)
GB/T12583-98
Determination of Extreme Pressure Properties of Lubricants (Four-Ball Method)
GB3142-82
Determination of the Bearing Capacity of Lubricants (Four-Ball Method)
SH/T0189-92
Determination of Oil Wear Resistance (Four-Ball Method)
SH/T0202-92
Determination of Extreme Pressure Properties of Grease (Four-Ball Method)

Features

Adheres to key ISO and ASTM standards for lubricant testing, ensuring that results meet industry expectations
The tester features a front-mounted weight slot that saves space and prevents accidental weight falls, enhancing safety and efficiency
Built-in automatic weight loading system simplifies operations and improves versatility for different testing scenarios
Its intelligent design captures and measures wear scar diameters with precision, ensuring repeatability and providing comprehensive data that can be stored for future analysis
Developed in-house with a variety of models, the four ball friction tester is designed to meet diverse customer needs, offering full technical support for users

Lubricant tester for testing load bearing capacity of lubricant and fatigue strength of gear

Lever Type Four Ball Friction Testing Machine

Lubricant tester for testing load bearing capacity of lubricant and fatigue strength of gear