Manual Four Ball Wear Tester
Manual Four Ball Wear Tester TT-2783
Manual Four Ball Wear Tester TT-2783 is used to assess the Wear Preventive (WP) and Extreme Pressure (EP) characteristics of greases and lubricating oils in sliding steel-on-steel applications.
It conforms to the ASTM D2783, ASTM D2266, and ASTM D4172 Standard Test Methods for Wear Preventive Characteristics of Lubricating Fluid (Four-Ball Method). The tester uses sliding friction under high point contact pressure to evaluate the lubricant's load-carrying capacity. It measures three key indices: maximum non-seizure load (PB), sintering load (PD), and composite wear value (ZMZ). Additionally, it is used for long-term abrasion resistance tests to measure the friction coefficient.
1. Features a large screen panel for easy operation.
2. Equipped with a tool cabinet for convenient storage.
1. Test force range (stepless): 60N-10kN
2. Test force display value relative error: ±1%
3. Test force long-term stability error: ±1% F.S.
4. Friction force measurement range: 0-300N
5. Friction force measurement error: ±3%
6. Main axis rotation speed range (stepless): 200-2000 r/min
7. Main axis rotation speed range error: ±10 r/min
8. Friction pair temperature control range: Room temperature to 200℃
9. Friction pair temperature control error: ±2℃
10. Test time control range: 1s-99h
11. Main axis rotation speed control range: 1-9999999 r
12. Net weight: About 400kg
13. Test steel ball: Φ12.7mm
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