Jiaxing bearing group sales co. , LTD. , is the spot sales center of jiaxing bearing factory, specializing in HRB bearings, application in production design and related machinery has a wealth of technical experience, today we are together and we learn the failure analysis of the grease.
HRB bearing grease failure analysis: (1), physical factors of failure in use at the same time they have been subjected to mechanical shear grease and grease under the action of centrifugal force will be left out of the friction interface and the oil, grease oil content reduce, hardening with the decrease of the cone into the degree, to a certain extent after grease will complete failure;
Under the effect of shear machine, the structure of grease love to damage (
Such as soap fiber release or orientation)
, cause its softening, consistency and analysis such as oil, eventually lead to failure.
Usually, use grease transfer speed 2000 r/min, half will reduce its life.
Under high shear stress, the double speed, service life is only equivalent to 1/10 of the original life.
(2), chemical factors caused by failure of grease with the oxygen in air to produce acid chemical anti, first it is an antioxidant additive, the consumption of fat, but to a certain extent, the generated organic acid corrosion of metal components and destroying the structure of fat, make its drop point drop, such as base oil viscosity increase and liquidity.
A large number of tests show that the higher the temperature, the more obvious drop in the life of the grease.
Such as temperature at 90 ~ 100 degrees, the temperature rise every 19 degrees, the service life of grease by about half, in 10 ~ 150 degrees, the temperature rise every 15 degrees, the service life of grease will be fallen by half.
In addition, the grease of moisture, dust and harmful gases, such as using environment and make its degradation is one of the important factors.
For example: fat in copper, iron, lead, and bronze wear particles, such as to lipid oxidation catalytic role.
In short, the failure of the grease for many reasons, and sometimes can be caused by a reason, but more is the result of multiple factors the same role, or in a reason as the breakthrough point, and then other reasons work together.
If you are interested in the above jiaxing bearing factory introduction of HRB bearing or have any questions, please click on contact us page on the right side of the online customer service, or call: 4006578186, jiaxing bearing retail center you full thoughtful procurement consultant.
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Editor: HRB bearing sourcing consultant LTD. All rights reserved,
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