This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Hydraulic Fluids - A Design Element - Preconditions and Possibilities for Long-Life Lubrication
Technical Paper
2002-01-1384
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Apart from engine oils, hydraulic fluids are the second important group of lubricants. They make up about 15 % of the total lubricant consumption. Mineral oil-based hydraulic fluids account for about 85-90 % of all hydraulic fluids, fire-resistant fluids have a market share of about 5 %, rapidly biodegradable fluids and specialities of about 5 % [1, 2].
The increase in effective life of lubricants combined with smaller volumes, extended oil change intervals and lower lubricant consumption have the combined effect of increasing the stress on lubricants. Higher temperatures, smaller oil volumes and greater performance requirements all have the effect of increasing performance and quality demands made on hydraulic fluids. In this paper we would like to present results of thermal and oxidation stability tests of different hydraulic fluids, as well as results of friction coefficient measurements of different kinds of hydraulic fluids. We will show how we can influence evaporating losses by the careful selection of the base oil and we will describe the filtration behaviour of different additive packages under the influence of water in a dynamic filtration test rig. The hydraulic fluid as an important part of compatible fluid family systems in machine tools will be described.
Recommended Content
Authors
Citation
Bock, W., "Hydraulic Fluids - A Design Element - Preconditions and Possibilities for Long-Life Lubrication," SAE Technical Paper 2002-01-1384, 2002, https://doi.org/10.4271/2002-01-1384.Also In
References
- Amtliche Mineralölstatistik des BAW und MWV Mineralölwirtschaftsverband Germany 1999
- Europe Lube Lubricants in Europe 1999
- Delphi-Studie im Auftrag des VDMA / Fachgemeinschaft Fluidtechnik March 1997 Verband Deutscher Maschinen- und Anlagenbauer Lyoner Str. 18, D-60528 Frankfurt/Main, Germany
- Mang, Theo Dresel, Wilfried Lubricants and Lubrication Wiley-VCH 2001
- FUCHS Petrolub AG Know How Transfer Mannheim, Germany Internal Reports FUCHS DEA Schmierstoffe GmbH & Co. KG, Industrial Oils Mannheim, Germany Internal Reports
- Rhein-Chemie Rheinau GmbH Mannheim, Germany Internal Reports
- CIBA Spezialitätenchemie GmbH Lampertheim, Germany Internal Reports
- Bock, W. Bartels, T. Reduzierung der Reibung durch gezielte Auswahl von Industriegetriebeölen “Antriebstechnisches Kolloquium ATK 2001” Aachen, Germany 29-30 May 2001 “Institut für Maschinenelemente und Maschinengestaltung (IME)” at the RWTH Aachen (University of Aachen) Aachen, Germany
- DIN 51 354-2, Prüfung von Schmierstoffen, FZG-Zahnrad- Verspannungsprüfmaschine April 1990 FUCHS DEA Schmierstoffe GmbH & Co. KG Mannheim, Germany Internal test reports of the mechanical-dynamic test field
- Kichle Arno Mercedes Benz AG Stuttgart, Germany Dept. ZWT/PS: Cost Aspects of Cutting Fluid in Use Translation of an article published in Mineralöltechnik No. 10 October 1996 03 41-1893
- Mang Theo Prof. Dr. Fuchs Petrolub AG Mannheim, Germany Future importance of base oils in lubricants “12. Internationales Kolloquium, Tribologie 2000 Plus” 11.-13. 01 2000 Technische Akademie Esslingen Postfach 1265, D-73748 Ostfildern, Germany
- Mang Theo Prof. Dr. Fuchs Petrolub AG Mannheim, Germany Voraussetzungen und Möglichkeiten der Schmierstoffe für die Langzeit-und Lebensdauerschmierung Statement at the occasion of “Tribo-Talk” GFT-Tagung 27 September 1999 Göttingen, Germany
- FVA Arbeitsblatt Partikelschäden zum Forschungsvorhaben Nr. 179/1 vom Oktober 1991 Forschungsvereinigung Antriebstechnik e.V. Lyoner Str. 18, D-6000 Frankfurt/Main 71, Germany
- Berechenbare Wirtschaftlichkeit und Sicherheit Ölpflege mit System Pall GmbH, Industrie-Hydraulik Philip-Reis-Str. 6, D-63303 Dreieich, Germany
- FAG Wälzlager Technische Information, TI-No. WL 40-43: Verfeinerte Lebensdauerberechnung macht Leistungsreserven deutlich FAG Kugelfischer Georg Schäfer AG Postfach 1260, D-97419 Schweinfurt, Germany