Ortech Marine / Partners / DEVA® Bearings

Maintenance-free bearings — from Federal-Mogul DEVA®.

Ortech Marine now supplies, engineers and installs DEVA® self-lubricating sliding bearings for rudders, CPP systems, mooring equipment, cranes and jack-up systems. The lubricant is built into the bearing material itself: no grease points, no maintenance intervals, no oil in the sea.

DEVA®
Manufacturer
Federal-Mogul DEVA GmbH
Group
Tenneco
Made in
Stadtallendorf, Germany
Supplied by
Ortech Marine · Tuzla
Pipe-lay vessel at sea, a DEVA® bearing reference application
DEVA® glide bearings run in the stinger hinge of a 330 m pipe-lay vessel. Image: Federal-Mogul DEVA.
Why DEVA®

Where grease reaches its limit.

Submerged, in the splash zone, under high edge loads or micro-movements, conventional greased bearings fail, seize or pollute. DEVA® materials carry the lubricant inside the bearing itself.

1936

First powder-metallurgical bearing material with embedded solid lubricant. More than 85 years of development.

1 mm – 32 m

Bearing diameters manufactured, as bushings, plates, segments and spherical bearings.

−200 / +800°C

Operating range across the material families. Seawater, corrosive media, dust, radiation, vacuum.

0 grease

No lubrication points, no maintenance intervals, no oil in the water. Electrically conductive, no stick-slip.

Materials

Four material families.

The right choice depends on load, sliding speed, temperature and medium. We select and size each bearing together with DEVA® application engineers.

deva.metal sintered bearings

deva.metal®

Sintered metal with dispersed solid lubricant

Bronze, iron, nickel or stainless-steel matrix with graphite dispersed evenly through the material. Highest temperature range, high static and dynamic load, no water absorption. Used where conventional lubrication is impossible, or as back-up for water-lubricated hydrodynamic bearings.

Temperature−200 to +800 °C
MediaSeawater · corrosive · radioactive
MovementRotating · oscillating · linear
LubricationNone required
Cylindrical · flanged · plates & washers · spherical · custom
deva.bm bi-metal bearings

deva.bm®

Bi-metal: stainless steel backing with sintered bronze sliding layer

Seawater-resistant 1.4301 or 1.4571 stainless backing with a self-lubricating bronze layer (graphite or PTFE). Compact, heavy-duty and free of stick-slip. Standard bushings up to Ø800 mm; larger sizes are segmented. Four microstructures and more than 44 variants.

Temperature−190 to +280 °C
Max. static load300 MPa
Max. dynamic loadUp to 150 MPa
Backing1.4301 · 1.4571 · CuSn6
Cylindrical · plates & washers · spherical · radial segments · custom
deva.glide bronze bearings with lubricant plugs

deva.glide®

Cast bronze with solid-lubricant plugs

Wear-resistant copper alloy with lubricant plugs arranged to suit the direction of movement. Tolerates misalignment, dirt, impact and edge loads. The material used in the largest DEVA® bearings: pipe-lay stinger hinges, jacking systems and mooring turrets.

MediaSalt water · dust
CharacterVibration-absorbing
MisalignmentHigh tolerance
LubricationDry or additional
Cylindrical · flanged · plates & washers · spherical · custom
deva.tex fibre composite bearings

deva.tex®

Glass-fibre reinforced composite with solid lubricants

Wound epoxy composite with a high-strength backing and an optimised sliding layer. No swelling in liquids, insensitive to shock and vibration, suitable for micro-movements. deva.tex 552 is DNV-approved for offshore use and certified for rudder bearings (DNV, GL).

Temperature−60 to +160 °C
Max. static load230 MPa
Max. dynamic load140 MPa
ApprovalDNV · GL rudder bearings
Cylindrical · flanged · plates & washers · spherical · segments · slewing rings

Also available: deva.ThrustSeal® washers and plates, Glycodur® composite bushings, and spherical plain bearings in all material families.

Marine & offshore

Where they are used.

Submerged, above the surface or in the splash zone, across ship equipment, offshore construction and port infrastructure.

Ship equipment

  • Rudder bearings (DNV / GL certified)
  • CPP pitch-regulation bearings
  • Trim tabs & stabilisers
  • Hatch covers & RO-RO ramps
  • Deck cranes & davits

Mooring & turret

  • Fairleads & chain stoppers
  • Winches & windlasses
  • Universal joints
  • FPSO / FSO turret systems
  • Off-loading arms & couplings

Offshore construction

  • Jack-up elevating systems (rigs, WTIVs)
  • Pipe-lay stinger hinges & tensioners
  • Riser hang-offs & connectors
  • Crane slewing & boom pivots
  • Dredging equipment

Drilling

  • Top drive systems
  • Tube handling
  • Wellhead systems
  • Drilling tools

Subsea

  • AUVs & ROVs
  • Subsea tools
  • Production & auxiliary equipment

Port & shipyard

  • Harbour crane hydraulic cylinders
  • Lock gates & hydro-civil structures
  • Loading arms
DEVA® references

Proven on the world's heaviest equipment.

A selection of DEVA® bearing applications worldwide, the same product line now available through Ortech Marine.

deva.glide® · Pipe-lay vessel

Stinger hinge bearing, 330 m PLV

Cylindrical bearing Ø1,270 mm × 2,300 mm long, 11 tonnes. Among the heaviest bearings DEVA® has produced.

deva.glide® · FPSO mooring

Turret & mooring system

Large-bore spherical and cylindrical bearings for mooring facilities, with on-site inspection and noise measurement by DEVA® technicians.

deva.glide® / deva.bm® · WTIV

Jack-up elevating system

Rack-and-pinion and cylinder guide bearings for wind-turbine installation vessels and offshore rigs.

deva.tex® 552 · Harbour crane

Hydraulic cylinder bearing

Ø220 mm cylindrical bearing with convex sliding surface and integrated seal.

Spherical bearings · DLV

11-tonne spherical bearings

The heaviest spherical bearings in DEVA® history, built for a derrick lay vessel.

deva.tex® · Ship propulsion

Rudder & CPP bearings

Water-lubricated composite bearings certified by DNV and GL for rudder applications.

Engineering support

Selected and sized, not just supplied.

A bearing is only maintenance-free if it was chosen correctly. Ortech engineers work with DEVA® application engineers from the first enquiry to installation on board.

  • 01Selection of sliding material and mating material
  • 02Design support: tolerances, fits, fixation
  • 03Service-life estimation and FEM analysis
  • 04Testing on DEVA® rigs: seawater, sand, sub-zero, hydrodynamic
  • 05Installation supervision in Tuzla or on site
  • 06Press-fit or liquid-nitrogen shrink-fit installation
  • 07Acceptance certificates to DIN EN 10204 3.1 / 3.2
Downloads

Datasheets & technical manuals.

Original DEVA® documentation in English. For a specific application, send us your data and we'll recommend the right material.

PDF
Marine & Offshore ApplicationsOverview brochure · all materials
 PDF
deva.metal® Technical ManualSintered metal bearings
 PDF
deva.bm® Technical ManualBi-metal · dimensions, fits, installation
 PDF
deva.glide® Technical ManualCast bronze with lubricant plugs
 PDF
deva.tex® Technical ManualFibre composite · DNV/GL grades
 PDF
Spherical Plain BearingsCatalogue · all families
Application enquiry

Have a bearing that keeps failing?

Send us the dimensions, load, movement and medium. We'll propose a DEVA® material and send a quotation.

Send application data → info@ortechmarine.com