GBS Gearbox Services international brand of Schaaf- en Boorwerk Rotterdam B.V.
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GBS Gearbox Services international

International Flender Graffenstaden gearbox repair


GBS Gearbox Services international is the fastest, full service, worldwide specialist in gearbox repair of Flender Graffenstaden gearboxes. Taking the latest innovations of our gearbox service experts, our goal is to get, often mission critical, gearboxes back into production at the shortest timespan possible. We have a winning track record in Flender Graffenstaden servicing! Having experience with a wide variaty of brands, we know the weakspots and strengths of any brand and can not only repair but often improve the reliability of any gearbox system.

Industrial gearbox services

Flender Graffenstaden is a manufacturer in the field of high speed enclosed gear drives. Flender Graffenstaden has supplied over 10,000 high speed gearboxes for the Petrochemical, Process and Power Generation industries around the world. Supplying gearbox systems on parallel shaft with horizontal offset, parallel shaft with vertical offset and Epicyclic types. All the Flender Graffenstaden gearboxes are being serviced by GBS Gearbox Services international.

GBS Gearbox Services international is specialised in services the gearboxes in all these industries, as our specialty lies in gearbox services. Our highly experienced emergency support experts work to provide effective solutions that meet your demands, getting your production running!

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2 different projects

  • Type:
  • TX40 / 4C
  • Netherlands
Scope of work:

This gearbox is used for generator testing purposes and suffered extensive fire damage during one of these test run sessions.

Gearbox Services International was invited to establish the condition of the gearbox, in order to assess which parts can be salvaged, as well as to compile a scope of repair for bringing the gearbox back into service. During the inspection, the gearbox was completely dismantled.

Rated power gearbox    : 2,500 kW
Rotational speed           : 4,233 / 900 rpm

The following activities comprise the scope of this inspection:

  • Exterior: visual inspection, appendages
  • Casing: internal conservation, split surface flatness
  • Bearings: visual inspection
  • Shafts: runout (staightness), hardness, journal surface condition
  • Gears: visual inspection, crack testing, hardness
  • Labyrinths: visual for rubbing marks
Location - date:
The Netherlands - March 2011
TX40 gearbox repair
  • Type:
  • TX61/1CV
  • Belgium
Scope of work: Preventive inspection of a Flender Graffenstaden, TX61/1CV, load gearbox. The load gearbox is part of a LM6000 gas turbine driven generator set.

Rated power gearbox    : 70,000 HP
Rotational speed           : 3,627 / 3,000 rpm

GBS International was invited to perform the 8,000 hours inspection of the gearbox.
Scope of work:
  • perform visual inspection of gears through the inspection cover
  • check dynamic tooth contact pattern of double helical gear set
  • check seals of installation for any oil leakages
  • check gearbox casing leveling
  • summarize findings in diagnostic report
Location - date:
Belgium - February 2011
getriebe reparatur TX61/1CV

For more than 20 years, GBS Gearbox Services has gained extensive knowledge of gear technology through new gearbox design and manufacture. Today, GBS is supplying service to Flender Graffenstaden gearboxes in marine and industrial markets.
Using this experience, our Services division will provide the highest level of commitment to existing and new customers for products already operating in the field.

Ship owners and Industrial companies throughout the world value the reassurance of the superior support provided by the skilled and dedicated engineering and technical specialists that form the GBS Gearsbox Services team.

Field Service Engineers are on constant standby to visit any ship or plant throughout the world. With an unrivalled average 25 years industry and marine experience, they are all fully qualified and certified to work in all environments, both on and offshore. Their high level of technical experience enables most work to be carried out on-site, supported by an practical experienced team of world-leading design and research engineers in the Netherlands.

Our Services team is qualified to inspect, maintain and repair any make or type of industrial or marine gearbox. Many working examples exist of improvements we have made to non-Flender Graffenstaden gearboxes, that have extended the life of the gearbox.

View all gearboxes in our database.

We are working in the following markets

gearbox repair
Power industry
Total Power Station gearboxes
Circulating Water Pump gearboxes
Boiler Feed Pump gearboxes
Coal Mill gearboxes
Wind turbine gearboxes
Hydro turbine gearboxes
Gas turbine gearboxes
Steam turbine gearboxes
OIL & GAS OFFSHORE - Oil rigs and FPSO’s
Turbine generator gearboxes
All Mechanical drive gearboxes
Boiler feed pump gearboxes
Sea water injection pumps gearboxes
Compressor gearboxes
(Petro) Chemical Industry
OIL & GAS ONSHORE / PETROCHEMICAL – Pumping and refineries
Turbine generator gearboxes
All Mechanical drive gearboxes
Boiler feed pump gearboxes
Pipeline pumping gearboxes
Pipeline compressor gearboxes
Propulsion gearboxes
Turbine generator gearboxes
gearbox repair
Heavy Industry
Heavy Industry
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