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Bearing grease deterioration M D Gafitanu

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Study on the Test Method for High Temperature and Heavy Loaded Grease Bearing Li

Temperature, load and rotate speed are the main factors which influence grease bearing life are presented by means of study on failure mechanism of grease. According to the test demands of high temperature and heavy loaded grease bearing life, test temperature ...

BEARINGS GREASES SERVICE LIFE IN HIGH LOADING AND SEVERE ENVIRONMENT CON DITIO

BEARINGS GREASES SERVICE LIFE IN HIGH LOADING AND SEVERE ENVIRONMENT CONDITIONS M. GAFITANU, G. IANUS, and M. TIRON “Gh. ...

CORRELATION BETWEEN GREASE DEGRADATION AND VIBRATION LEVEL OF BALL BEARI N

CORRELATION BETWEEN GREASE DEGRADATION AND VIBRATION LEVEL OF BALL BEARINGS M. D. GAFITANU, G. M. IANUS, F. TARABOANTA Technical University „Gh. ...

A Model for Shear Degradation of Lithium Soap Grease at Ambient Temperatu

within a rolling bearing, grease will undergo high shear, possi-bly causing deterioration. The degradation of this grease is usu ... Lpiston Piston displacement for one full stroke of the grease worker (m) m Degradation exponent R2 Goodness of fit Ra line average i ...

Rolling Bearing Dama

Gradual deterioration of the opera-ting behaviour is normally the first sign of bearing damage. Spontaneous damage is rare, for example that caused by mount ...

Some influence parameters on greases lubricated rolling contacts service life, Wear | 10.1016/S0043-1648(99)00078-2 | DeepDy

Some influence parameters on greases lubricated rolling contacts service life Some influence parameters on greases lubricated rolling contacts service life Farcas, F; Gafitanu, M.D 1999-04-01 00:00:00 The present tendencies in miniaturizing the ...

Friction and wear in thrust ball bearings lubricated with biodegradable greases - T Cousseau, B Graça, A Campos, J Seabra, 20

Baly, H., Poll, G., Cann, P. M., and Lubrecht, A. A. Correlation between model test devices and full bearing test under grease lubrication conditions. InProceedings of the IUTAM Symposioum on Elastohydrodynamics and micro ...

Research on the Lubrication Mechanism of Grease for High Speed Bearin

bearings that can operated with d mn=1.7 million. 2. Grease life under ordinary-temperature high-speed environment Three different grease types, Greases A, B and SE ...

VIBRATION LEVEL OF BALL BEARINGS DETERMINED BY GREASE STRUCTU

VIBRATION LEVEL OF BALL BEARINGS DETERMINED BY GREASE STRUCTURE Mihai GAFITANU*, Gelu IANU ... Gafitanu, M.D., Ianus, G., Farcas, Fl., Olaru, D.N.” Grease Reliability in Ball Bearing Applications ...

Bearing grease deterioration | M. D. Gafita

Download Citation on ResearchGate | Bearing grease deterioration | About 80% of bearing mountings are grease lubricated. This has many advantages, such as eliminating complicated oil cooling systems, and better organisation of the available space in machine ...

Grease Degradation in R0F Bearing Tes

In many bearing applications, grease is subject to high oper-ating temperatures and severe shear stresses. Over an extended ... 188 P. M. CANN ET AL. 1. Grease undergoes both chemical and physical deterioration during use. 2. Chemical changes include: ...

ELECTRICAL PROPERTIES-FUNCTIONING TEMPERATURE CORRELATIONS FOR ROLLING BEARINGS GREASES UNDER THE INFLUENCE OF THE ELECTRIC FIEL

ELECTRICAL PROPERTIES-FUNCTIONING TEMPERATURE CORRELATIONS FOR ROLLING BEARINGS GREASES UNDER THE INFLUENCE OF THE ELECTRIC FIELDS Mihai Tiron, “Gh. Asachi”Technical University of Iasi, Romania Mihai Gafitanu, “Gh. ...

www.doctorat.tuiasi.

Elaboration of the new analytical model to estimate of the grease deterioration in the ball bearing applications; ... M.D.Gafitanu, D.N.Olaru und M.C.Cocea: Die Verluste Wegen Der Reibung In Radial-Arial — Kugellagern Bei Hohen Drehzahlen, WEAR 160 D.N ...

Study on the Test Method for High Temperature and Heavy Loaded Grease Bearing Li

Temperature, load and rotate speed are the main factors which influence grease bearing life are presented by means of study on failure mechanism of grease. According to the test demands of high temperature and heavy loaded grease bearing life, test temperature ...

Selecting grease or o

A flow chart to help select the correct lubrication method is shown in diagram 1. The main reasons to choose grease are: cost-effectiveness simplicity - grease is easily retained in the bearing and housing, thus requiring less complicated sealing arrangements ...

Selecting grease or o

d m = bearing mean diameter [mm] = 0,5 (d + D) b f = bearing factor dependent on bearing type and load conditions the load ratio C/P ... During a running-in period, excess grease in the bearing distributes or escapes. At the end of the running-in period, the ...

Bearing grease deterioration - Gafitanu - 2001 - Lubrication Science - Wiley Online Libra

M. D. Gafitanu Department of Machine Design & Vibrations, Technical University ‘Gh. Asachi’ of lasi, Romania Search for more papers by this author F. Farcas Department of Machine Design & Vibrations, Technical University ‘Gh. Asachi’ of lasi, Romania ...

Rolling Bearings Greases Deterioration: Structure, Chemical Composition, Rheology, Service Life Correlatio

Grease lubrication for ball or roller bearings became a daily practice in technical applications (over than 80% of bearings assemblies can be greased lubricated) because ... F. Farcas and M. C. Tiron, "Rolling Bearings Greases Deterioration: Structure, Chemical ...

M. D. Gafitanu's research works | Gheorghe Asachi Technical University of Iasi, Iaşi (TU Iasi) and other plac

M. D. Gafitanu's 7 research works with 28 citations and 433 reads, including: Lubrication safety in high‐speed ball‐bearings M. D. Gafitanu's research while affiliated with Gheorghe Asachi Technical University of Iasi and other places Publications (7) ...

Development of Motor Bearing Greases - eB Catal

influence of grease properties on bearing performance is extremely high, and therefore JTEKT has developed ... Factors associated with accelerating the deterioration of grease may be based on chemical, physical and other forms of contamination. Furthermore ...

Bearing grease deterioration - Gafitanu - 2001 - Lubrication Science - Wiley Online Libra

Bearing grease deterioration Authors M. D. Gafitanu, Department of Machine Design & Vibrations, Technical University ‘Gh. Asachi’ of lasi, Romania Search for more papers by this author ...