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DEVA
Product range
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Engineering Services
World class bearings from DEVAsave time and money.
Profit from more than 60 years of experience in self-lubricatingsliding bearings.
Make use of our extensive material and application expertisespanning a very wide range of industries .
Let our application engineering team assist you in the: selection of the bearing materials,
design, purpose-built to your requirements,
assembly and installation,
calculation of estimated life time.
Benefit from the latest material developments,tested using state of the art facilities.
Ask for a simulation of your bearingapplication on our test rigs.
Let us analyse yourbearing problem by FEM.
Expect the highest quality standards,
certified to DIN ISO 9001:2000,ISO/TS 16949:2002
and DIN EN ISO 14001.
Our bearing service
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3
deva.metal
deva.metal
maintenance-free
Where to use
deva.metal is a self-lubricatingbearing material manufactured byadvanced powder metallurgy. It is fullycompacted, unlike oil-impregnatedporous bronze materials that are weakby comparison. deva.metal is provi-ded with an evenly distributed solidlubricant throughout its metallic matrix.deva.metal
- is suitable for dry running at slowsliding speeds and high loads,
- is stick-slip free,- has high resistance to temperature
and corrosion,- is insensitive to contamination and
edge pressures,
- can be easily machined if required.
Reference applicationsIron and steel works, furnace con-struction, fans, foundry machinery,waste water cleaning plants, water-,steam- and gas-turbines, pumps andcompressors, food and beverageindustry machinery, packing
machinery, apparatus engineering,mechanical handling equipment,etc.
Material properties
Tolerances
Housing bore H7
Bearing outer r6/s6
Bearing inner C7 for D8 after inst.
Shaft h7
Counter material hardness > 180 HB
Shaft surface finish Ra 0.2 to 0.8 m
Material property Unit Value
Max. permitted static load ( p
) MPa 260
Max. permitted dynamic load (p
) MPa 130
Max. sliding speed (U) m/s 0.4
Max. pU-value MPa m/s 1.5
Friction coefficient 0.09 to 0.49
Temperature range C -200 to +800
Structure
InstallationThe recommended method for instal-ling bushes is supercooling (bronzealloys only) or press-fit.
TolerancesOther installation tolerances arepossible, provided that a safe fit inthe housing and the necessaryrunning clearance are maintained.
Basic forms
Microsection deva.metal
Flanged bearings Cylindrical bearings Sliding plates
Thrust washers Machinable blanks Spherical bearings
n Bronze, iron or nickel
matrixo Solid lubricant
(Graphite, WS2, MoS
2and other)
n
o
Other forms andvariants on request.
(depending on alloyand operating conditions)
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deva.bm
maintenance-free
deva.bm
Where to use
deva.bm is a thin-walled self-lubri-cating composite sliding material.It consists of a backing made ofstandard steel, stainless steel orbronze with a deva.metal layerapplied in a combined rolling/sintering process. deva.bm offersbasically the same bearing char-acteristics as deva.metal but iscapable of handling even higherloads and offers an economicsolution to many bearing problems.
Reference applicationsWater turbines, injection moldingmachinery, food and beverageindustry machinery, packingmachinery, printing machinery,apparatus engineering, shut-offvalves, tire molds, etc.
Material properties
Tolerances
Housing bore H7
Bearing inner H8/H9 after inst.
Shaft d7/ e7
Counter material hardness > 180 HB
Shaft surface finish Ra
0.2 to 0.8 m
Material property Unit Value
Max. permitted static load ( p
) MPa 320
Max. permitted dynamic load (p
) MPa 150
Max. sliding speed (U) m/s 1.0
Max. pU-value MPa m/s 1.5
Friction coefficient 0.10 to 0.18
Temperature range C -150 to +280
Structure
InstallationPress-fit installation or supercooling.
TolerancesOther installation tolerances arepossible, provided that a safe fit inthe housing and the necessaryrunning clearance are maintained.
Basic forms
Microsection deva.bm
Cylindrical bearings Cyl. bearings with grooves Sliding strips
Custom parts Sliding plates Thrust washers
4
nSliding surfaceoSliding layer (bronze)pSolid lubricant (graphite)qBacking
n
o
p
q
Other forms andvariants on request.
(depending on used materialand operating cond.)
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5
Where to use
deva.bm/9P is a thin-walled, self-lubricating composite sliding materi-al. The sliding layer is applied to astainless steel backing in a combinedrolling/sintering process.PTFE serves as lubricant and offersvery low friction and wear rates.
An optional running-in film can extendthe bearing lifetime under certainoperating conditions.
Reference applicationsWater turbines, injection moldingmachinery, packing machinery, foodand beverage industry machinery,printing machinery, shut-off valves,hydro-mechanical engineering, tiremolds, apparatus engineering, etc.
Material properties
Tolerances
Housing bore H7
Bearing inner H8/H9 after inst.
Shaft d7/ e7
Counter material hardness > 180 HB
Shaft surface finish Ra
0.2 to 0.8 m
Material property Unit Value
Max. permitted static load ( p
) MPa 320
Max. permitted dynamic load (p
) MPa 150
Max. sliding speed (U) m/s 1.0
Max. pU-value MPa m/s 2
Friction coefficient (dep. on operating cond.) 0.05 to 0.15
Temperature range C -260 to +260
Structure Basic forms
Microsection deva.bm/9P
Cylindrical bearings Cyl. bearings with grooves Sliding strips
Custom parts Sliding plates Thrust washers
deva.bm/9Pmaintenance-free
nSliding surfaceo Sliding layer (bronze)pSolid lubricant (PTFE)qStainless-steel backing
n
o
p
q
deva.bm/9P
Other forms andvariants on request.
InstallationPress-fit installation or supercooling.
TolerancesOther installation tolerances arepossible, provided that a safe fit inthe housing and the necessaryrunning clearance are maintained.
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Where to use
deva.glide is a self-lubricatingbearing material that consists of ahigh-quality bearing bronze withsolid lubricant pockets. A thin filmof solid lubricant aids the running-inprocess if required.deva.glide allows to replace lubri-cated bronze bearings with a main-tenance-free alternative and- is suitable for large dimensions,- has a low friction coefficient,- has a high wear resistance,- allows a high durability.
Material properties
Tolerances
Housing bore H7
Bearing outer s6
Bearing inner E8 for H10 after install.
Shaft c8 /d8
Counter material hardness > 180 HB
Shaft surface finish Ra 0.2 to 0.8 m
Material property Unit Value
Max. permitted static load ( p
) MPa 150
Max. permitted dynamic load (p
) MPa 90
Max. silding speed (U) m/s 0.4
Max. pU-value MPa m/s 1.5
Friction coefficient (dep. on operating cond.) 0.10 to 0.15
Temperature range C -100 to +250
Structure
InstallationPress-fit installation or supercooling.
TolerancesOther installation tolerances arepossible, provided that a safe fit inthe housing and the necessaryrunning clearance are maintained.
Basic forms
Microsection deva.glide
Flanged bearings Thrust washers Spherical bearings, floating
Cylindrical bearings Sliding plates Spherical bearings, fixed
deva.glide
6
deva.glide
maintenance-free
Reference applicationsHydromechanical engineering,offshore industry, iron foundries andsteel works, heavy machinery, cranesand conveyors, deep and open castmining machinery, construction andearth-moving machinery, etc.
nSliding surfaceoSolid lubricant ingotsp Bearing material (bronze)
n
o
p
Other forms andvariants on request.
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7
deva.tex
maintenance-free
Where to use
deva.texis a high performance self-lubricating sliding material with aglass-fibre reinforced carrying layer.The machinable sliding layer con-sists of fibres which are embeddedin epoxy resin. The resin carries PTFEas lubricant for excellent tribologicalperformance.deva.tex bearings are available instandard d imensions up to 200 mmaccording to DIN 1850 and arecharacterized by a very highcorrosion and wear resistance. They
are insensitive to contamination aswell as to vibrations and shockloads. Custom dimensions are also
available due to the machinable in-ner and outer layer.
Reference applicationsWater turbines, hydromechanicalengineering, agricultural machines,earth moving equipment, railroad
vehicles, shut-off valves, chemicalindustry, apparatus engineering,wind turbines, etc.
Material properties
Tolerances
Housing bore H7
Bearing inner see techn. manual
Shaft see techn. manual
Counter material hardness > 180 HB
Shaft surface Ra
0.2 to 0.8 m
Material property Unit Value
Max. permitted static load (p
) MPa 220
Max. permitted dynamic load ( p
) MPa 120
Max. sliding speed (U) m/s 0.3
Max. p
U-value MPa m/s 1.8
Friction coefficient (dep. on operating cond.) 0.03 to 0.12
Temperature range C -100 to + 160
Structure Basic forms
Microsection deva.tex
Cylindrical bearings Sliding plates
InstallationPress-fit installation. Supercooling inliquid nitrogen possible for innerdiameters above 150 mm.
TolerancesAs the outer and inner diameters aremachinable, other tolerances arepossible.
n Glass-fibre reinforced carrying layero
Sliding layer: Glass-fibrereinforced epoxy resin withPTFE additive
n
o
deva.tex
Machined cyl. bearings Machined cyl. bearings
Other forms and
variants on request.
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9
BM 1 0 003 201 1750 A1
Data relevant to the design of DEVA bearings
Description of application:
Project / No.
Plain bearing Flanged bearing Thrust washer Floating bearingSpherical bearing
Sliding plate
Quantity
Item 1 Item 2 Item 3
Inner diameter D1(D
5)
Outer diameter D2(D
6)
Bearing width B1
Outer r ing width BF
Flange outer dia. D3Flange thickness S
F
Wall thickness ST
Plate length L
Plate width W
Plate thickness SS
Dimensions (in mm) Item 1 Item 2 Item 3
Static
Dynamic
Alternating
Impact
Radial load in kN
Axial load in kN
Surface pressure
Radial in MPa
Axial in MPa
Loading Item 1 Item 2 Item 3
Speed in rpm
Sliding speed in m/s
Stroke length in mm
Double strokes/min
Angle
Frequency in n / min
Motion Item 1 Item 2 Item 3
Continuous operation
Intermittent operation
Duty cycle
Days/years
Frictional distance in km
Operating time Item 1 Item 2 Item 3
%/h %/h %/h
Shaft
Bearing holder
Fits and tolerances Item 1 Item 2 Item 3
Temperature at bearing
Contact medium
Other influences
Environm. conditions Item 1 Item 2 Item 3
C C C
Material No./type
Hardness in HB/HRC
Roughness Ra
in m
Item 1 Item 2 Item 3Mating material
New design Existing design
Desired operating time
Permissible wear
Item 1 Item 2 Item 3Lifetime
Dry running
Permanent lubrication
Medium lubricationMedium
Lubricant
Assembly lubrication
Hydrodyn. lubrication
Dynamic viscosity
Lubrication Item 1 Item 2 Item 3
Company address / contact
h
mm
h
mm
h
mm
Shaft rotates Bearing rotates Angular motion Axial motion
Fixed bearing
Design
data
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The information in this bulletin should be used as an informational guide for your consideration, investigatian and verification. Thisinformation does not constitute a warranty or representation, and we assume no legal responsibility or obligation with respectthereto and the use to which such information may be put. GGB generally warrants, as set forth below, that products describedin this brochure are free from defects in workmanship and material, but unless expressly agreed in writing GGB gives no warrantythat these products are suitable for any particular purpose or for use under any specific conditions notwithstanding that suchpurpose would appear to be covered by this publication.
GGB STANDARD WARRANTY AND LIMITATION OF LIABILITY. Seller warrants that if any product of its manufacture uponexamination is found by a Seller's representative to be defective in either workmanship or material under normal use and serviceSeller, at its option, will repair or replace same free of charge including lowest transportation charges but not cost of installationor removal or will refund the purchase price thereof, provided that Seller receives written notification of a claim specifying thedefect within ninety (90) days from date of distributor sale or one (1) year from date of factory shipment, whichever occurs first.In no event shall Seller be liable for any claims, whether arising from breach of contract or warranty or claims of negligence ornegligent manufacture, in excess of the purchase price. ALL OTHER WARRANTIES EXPRESSED AND IMPLIED INCLUDING
ANY WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR USE ARE HEREBY DISCLAIMED. The foregoingexpresses all of Seller's obligations and liabilities with respect to the quality of items furnished by it and it shall under nocircumstances be liable for consequential, collateral or special losses or damages.GGB is a trademark of GGB.
DEVA, deva.metal, deva.bm, deva.bm/9P, deva.glide and deva.tex are registered trademarks of Federal-Mogul DevaGmbH, D-35260 Stadtallendorf, Germany.
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