High speed ring block friction and wear testing machine MRH-3

Friction and wear testing machine
Evaluate the sliding friction coefficient of metal materials and the lubrication performance of various lubricants in the form of sliding friction and ring block wear under oil immersion lubrication conditions Especially suitable for evaluating the anti scratch performance of gear oil in medium and high-end automobiles It can also be used for evaluating the lubrication performance of solid lubricating materials and conducting wear tests on various metal and non-metal materials


    The MRH-3 high-speed ring block friction and wear testing machine uses sliding friction and ring block wear to evaluate the sliding friction coefficient of metal materials and the lubrication performance of various lubricants under oil immersion lubrication conditions. It is particularly suitable for evaluating the anti scratch performance of medium and high-end automotive gear oils, as well as for evaluating the lubrication performance of solid lubricating materials and conducting wear tests on various metal and non-metal materials.

Applicable standard

GB/T 12444-2006 Test Method for Wear of Metallic Materials - Sliding Wear Test of Test Ring Test Block

ASTM G77-05 (2010) Standard Test Method for Grading Material Resistance to Sliding Wear Using Ring Block Wear Test



1. Maximum radial test force: 3kN (5kN can be customized)


2. Test force control method: servo control stepper motor closed-loop control applies test force


3. Accuracy of test force: ≤± 0.5%


4. Friction force measurement range: 500N Friction force measurement without gear division


5. Friction accuracy: not exceeding ± 0.5%


6. Speed range: 20-3000r/min infinitely adjustable, meeting standard requirements


7. Test oil temperature range: room temperature~250 ℃


8. Standard Huai test ring size: φ 49.22mm × 13.06mm


9. Standard Huai test block size: 12.32mm × 12.32mm × 19.05mm








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