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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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+65 9030 3518 pgo@orangedelta.sg
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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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+65 9030 3518 pgo@orangedelta.sg
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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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+65 9030 3518 pgo@orangedelta.sg
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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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+65 9030 3518 pgo@orangedelta.sg
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Orange Delta Equipment Pte Ltd

36 Purvis Street #02-07

Singapore 188613

Patrick Goossens
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Federal-Mogul DEVA GmbH

47001 Port Street

Plymouth Michigan 48170

Kumar Nainani
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Federal-Mogul DEVA GmbH

47001 Port Street

Plymouth Michigan 48170

Kumar Nainani
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Federal-Mogul DEVA Korea Office

#104-201, 121 Gwanak-daero

Dongan-gu, ANYANG Gyeonggido 13922

Taeshik Lee
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+82(0) 31 8091 9231 +82(0) 10 5355 9231 +82(0) 31 62 44 337 taeshik.lee@tenneco.com
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Federal-Mogul DEVA Shanghai Office

No. 118. Jinqiao Road

Pudong District, Shanghai 201206

Nick Yu
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Hentec Sverige AB

Östra Storgatan 9

55421 Jönköping

Joergen Levander
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+46 76 765 82 01 jorgen.levander@hentecgroup.com
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Hentec Sverige AB

Östra Storgatan 9

55421 Jönköping

Joergen Levander
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+46 76 765 82 01 jorgen.levander@hentecgroup.com
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Industry Engineering LLC

5/12, building 2, floor 3, office 232A Zelenyi prospect

111141 Moskau

Vladislav Butenko
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+7 499 502 - 4144 +7 905 501 - 3662 +7 499 502 - 4144 v.butenko@i-eng.ru
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Federal-Mogul Deva GmbH

Schulstr. 20

35260 Stadtallendorf

Hannes Golob
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+43(0)660 - 7673781 +49(0)6428 - 701335 hannes.golob@tenneco.com
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Federal-Mogul Deva GmbH

Schulstr. 20

35260 Stadtallendorf

Hannes Golob
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Federal-Mogul Deva GmbH

Schulstr. 20

35260 Stadtallendorf

Hannes Golob
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Federal-Mogul Deva GmbH

Schulstr. 20

35260 Stadtallendorf

Hannes Golob
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Federal-Mogul Deva GmbH

970 Chemin de la Lecque

13760 Saint-Cannat

Jacques Walter
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+33(0)486 - 311188 +33(0)620 - 721959 +33(0)442 - 508462 jacques.walter@tenneco.com
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Federal-Mogul Deva GmbH

M-501 km 56 Apdo.: 08

San Martín de Valdeiglesias 28680

Iván Seyedzadeh López
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Federal-Mogul Deva GmbH

M-501 km 56 Apdo.: 08

San Martín de Valdeiglesias 28680

Iván Seyedzadeh López
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Hentec Norge AS

Berghagan 7

N-1405 Langhus

Ole-Petter Laksholm
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+47(0)417 - 05150 ole.petter.laksholm@hentecgroup.com
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Hentec Norge AS

Berghagan 7

N-1405 Langhus

Ole-Petter Laksholm
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Hentec Norge AS

Berghagan 7

N-1405 Langhus

Ole-Petter Laksholm
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+47(0)417 - 05150 ole.petter.laksholm@hentecgroup.com
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Federal-Mogul Deva GmbH

Via Zanica 64

24126 Bergamo

Pietro Provenzano
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Federal-Mogul Deva GmbH

Seckenrain 34

69483 Wald-Michelbach

Jürgen Vollmer
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+49(0)6207 - 9257411 +49(0)171 - 5520573 +49(0)6428 - 701108 juergen.vollmer@tenneco.com
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Federal-Mogul Japan K.K.

Nisseki Yokohama Building 18F 1-1-8 Sakuragi-cho, Naka-ku

Yokohama, 231-0062

Tetsuya Nagakura
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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+55 11 99427 8694 rafael@bemaso.com.br
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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+55 11 99427 8694 rafael@bemaso.com.br
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Bemaso Ltda.

R. Canuma, 192

04642-040, São Paulo - SP, Brasil

Rafael Ingegneri
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DEVA Two employees at work

Sliding Bearing

A system is referred to as a sliding bearing in which the relative movement between the shaft and the bearing or an intermediate medium is a sliding movement. Depending on the perspective, plain bearings can be classified differently. Three most common groups are briefly presented below:

Classification according to the lubricant

  • Non-lubricated bearings
  • solid lubricated bearings
  • grease-lubricated bearings
  • oil-lubricated bearings
  • water-lubricated bearings
  • gas lubricated bearings

Classification according to the functional principle

  • Solid friction bearings – no lubrication, solid friction
  • Mixed friction plain bearings – lack of lubrication, mixed friction
  • Hydrodynamic bearings - work by generating dynamic pressure in which a supporting lubricating film is built up solely through the relative movement between the bearing and the mating material
  • Hydrostatic bearings – work on the principle of external pressure generation, i.e. the necessary lubricant pressure is generated outside the bearing by a pump Aerodynamic bearings – also make use of dynamic pressure generation through the formation of a gaseous lubricating film as a result of fluid dynamic effects
  • Areostatic bearings – bearing shell and shaft are separated from external pressurization by a gaseous lubricating film
  • Electromagnetic bearings – an intelligent control makes it possible to keep the rotor (shaft) in suspension using actuating magnets

Classification according to the direction of force

  • Radial bearing, Cross bearing (support bearing): for radial forces
  • Axial bearings, longitudinal bearings (track bearings): for axial forces

Depending on the medium and parameters, different friction states occur in plain bearings, such as radial plain bearings:

  • Solid friction: Friction when two bodies come into direct contact
  • Boundary friction: Solid friction in which the surfaces of the friction partners are covered with a molecular boundary layer film
  • Mixed friction: Friction when solid friction and liquid friction coexist
  • Liquid friction: Friction in a liquid film that completely separates the friction partners and can be generated hydrostatically or hydrodynamically
  • Gas friction: Friction in a gaseous film that completely separates the friction partners and can be generated aerostatically or aerodynamically

These friction conditions can be defined using the Stribeck curve. They also serve to classify wear and lubrication. The Stribeck diagram shows the coefficient of friction versus the lubrication gap height. In an oil-lubricated system, a radial plain bearing passes through the main friction states of boundary friction, mixed friction and fluid friction, depending on the sliding speed and load. Solid friction does not occur in oil-lubricated systems, since in this case of tribocontact at least 1-molecular layers always occur. In addition to the Stribeck curve, the upper part of the figure also shows the dependence of wear on the friction conditions.

Federal-Mogul Deva GmbH exclusively produces self-lubricating bearings with solid lubricant depots. These are mainly used for dry running, although grease, water or oil-lubricated systems can also be considered, taking certain criteria into account. As a rule, the speeds are low and the loads are so high that hydrodynamics do not take place. The friction conditions to be expected are solid friction, boundary friction and mixed friction, since a boundary lubricating film forms as a result of the solid lubricant.

The calculation bases and use of the Stribeck curve, as is the case for typically hydrodynamically running plain bearings, are therefore not applicable or expedient for self-lubricating plain bearings in practice.

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