SHUNMAO INSTRUMENTS
Four-Ball Testers
Compare five four-ball platforms for lubricant load-carrying capacity and anti-wear evaluation. Select the loading system, operating range and test configuration that fit your work.
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5 models / items
Electro-Hydraulic Servo Four-Ball Tester
Evaluate lubricant load-carrying capacity and anti-wear performance under high point-contact pressure using sliding four-ball contact.
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Lever-Loaded Multifunctional Four-Ball Tester
A multifunctional four-ball platform for lubricant testing, with configurations for tapered-roller-bearing shear stability, rolling pitting and thrust-ball-bearing energy-consumption evaluation.
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Lever-Loaded Four-Ball Tester
Assess lubricant load-carrying capacity and long-duration anti-wear performance with a deadweight-and-lever loading system.
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Computer-Controlled Long-Duration Four-Ball Wear Tester
Evaluate long-duration lubricant anti-wear performance and friction coefficient at relatively low test forces. Additional fixtures support high-temperature railway diesel oil and metal wear studies.
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Hydraulically Loaded Four-Ball Tester
Evaluate lubricant load-carrying capacity and anti-wear performance under high point-contact pressure, including non-seizure load, weld load and long-duration wear tests.
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2 models / items
Four-Ball Wear-Scar Measurement System
A CCD imaging system for measuring and documenting wear scars on test balls. The system combines a microscope, specimen holder, camera, computer, measurement software, scale and light source.
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Tapered-Roller-Bearing Shear-Stability Test Assembly
A tapered-roller-bearing contact assembly for assessing the viscosity shear stability of transmission lubricants using the KRL test method.
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