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Grease degradation in a bearing simulation device P M

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Grease degradation in a bearing simulation devi

Grease degradation in a bearing simulation device Grease degradation in a bearing simulation device Cann, P.M. 2006-12-01 00:00:00 In this study, a ball-on-disc traction (MTM) device has been used to degrade grease under controlled thermal and shear conditions over an extended period. The tests were run under both fully flooded and semi-starved conditions to simulate the lubricant supply ...

Tribological behaviors of three novel imidazoline-type .

Three novel imidazoline-type thiadiazole derivatives are prepared and used as antiwear and extreme-pressure additives in biodegradable lithium grease, and their tribological performances are evaluated using a four-ball tester. Tribological tests show that all derivatives are effective in reducing wear, especially at lower additive concentrations.

(PDF) INFLUENCE OF ADDING CONTAMINANTS PARTICLES TO .

This paper examines solid additives as a function of contamination of lubricant to explore and evaluate the influence on the frictional coefficient. Silica sand with different particle sizes and Fe powder all at five concentration levels were used to

NAVER Academic > Grease lubrication of rolling element .

Lubricant film thickness and friction were measured for different grease thickener types in a bearing simulation device. The ... Grease lubrication of rolling element Author ...

Interactions of Tribology and the Operating Environment .

Interactions of Tribology and the Operating Environment: Proceedings of the 32nd Leeds-Lyon Symposium on Tribology (Lyon, 2005) ... select article Grease degradation in a bearing simulation device. Research article Full text access Grease degradation in a bearing simulation device. P.M. Cann. Pages 1698-1706 Download PDF. Article preview.

(PDF) Grease Degradation in R0F Bearing Tes

Grease Degradation in R0F Bearing T ests. P. M. CANN. ... Lubricant composition was examined under dynamic conditions using a modified ball-on-disc bearing simulation rig. Lithium hydroxystearate ...

VYUŽITÍ EXPERIMENTÁLNÍHO ZAŘÍZENÍ MINI TRACTION .

Seznam odborné literatury: 1. Grease degradation in a bearing simulation device, P M Cann, Tribology International, Volume 39, Issue 12, pp 1698-1706, (December 2006) 2.

The Development of a Lubricant Traction Measurement Syst

Abstract. A ball-disc traction test rig is improved through the development of a lubricant traction measurement system, consisting of a resonance force sensitive quartz sensor, a circuit of the sensor and a rigid bracket jointed by a frictionless hinge.

GREASE FILM THICKNESS AND FRICTION IN EHL CONTACTS - Oe

A bearing simulation device has been used to measure film thickness and friction for a range of speed and slide-roll conditions at 60°C. The film thickness measurements show that the test greases give a higher film thickness than the base oil over the speed range. Film enhancement was greatest at speeds below 0.02 m/s.

Assessing workability of greased bearings after long-term .

Abstract. Here, we developed a technique to assess the workability of sealed-for-life greased rolling bearings after a long-term storage. In this framework, we devised a model of equivalent transition between the conditions of natural ageing under daily and seasonally fluctuating temperature, and the conditions of accelerated thermal ageing at a constant high temperature.

Tribological properties of polyol-ester-based lubricants .

Wang, D, Mousavi, P, Hauser, PJ Novel testing system for evaluating the thermal stability of polyol ester lubricants. ... Makowska, M, Kajdas, C, Gradkowski, ... Grease degradation in a bearing simulation device.

(PDF) Studies of the Kinetics of Lithium Grease .

Stuttgart/Ostfild- observed for the methyl and methylene groups character- ern, Germany (2008) istic for lithium 12-hydroxystearate molecules. This con- 10. Paszkowski, M.: Some aspects of grease flow in lubrication systems and friction nodes.

The influence of bearing grease composition on friction in .

Read "The influence of bearing grease composition on friction in rolling/sliding concentrated contacts, Tribology International" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Grease Degradation in Rolling Element Bearings | P. M .

Grease is degraded during use in rolling element bearings and as a result the lubrication performance can deteriorate. Under severe conditions this can result in lubrication failure and, thus, the ...

Grease degradation in a bearing simulation device .

Grease degradation in a bearing simulation device. Author links open overlay panel P.M. Cann. Show more. ... In a further improvement combined thermal/rubbing experiments were carried out in a ball-on-disc device and grease degradation in and around the track studied ... P.M.E. Cann, B. Damiens, A.A ...

Structural Degradation of a Lithium Lubricating Grease .

Structural Degradation of a Lithium Lubricating Grease after Thermal Ageing Jiabao Pan, Yanhai Cheng and Jinyong Yang School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China Keywords: Lubricating Grease, Thermal Ageing, Structural Degradation, Structural Strength, Reversibility Due to the ...

Analysis and Characterization of Waste Lubricating Grease .

2006 [14] reported a similar observation for grease degradation in a bearing simulation device. The WGDO spectrum shows an intense (C=O) band at 16701725 cm-1, - which is due to oxidation of the oil and small traces of the thickener. Rincon et al, 2007 [15] pointed out that the co-extraction of oxidation compounds together with base oil may

Microbubble Phenomenon in the Grease Lubricating Film .

A microbubble phenomenon induced by micro-oscillation in the grease lubricating film confined within a nanogap between a highly polished steel ball and a smooth glass disc has been observed with an interferometer. Experimental results show that when the micro-oscillation frequency is a constant ...

Identyfikacja sumarycznego oddziaływania dodatków .

Cann P.M.: Grease degradation in a bearing simulation device. Tribology International 39 (2006) 1698–1706. 5. Krawiec S., Krawiec M., Leśniewski T.: Wpływ dodatków ...