Graessner – your service partner

In addition to the manufacture and sale of bevel gears, we also offer a comprehensive service in the field of drive technology.

Our gear repair service includes a preliminary consultation and a thorough inspection of the gear, during which we can assess the damage and make a diagnosis. Dismantling and assembling the gear is also part of the service! You will receive any replacement parts which are necessary to repair the gear, either from us or from one of our partners.

We also like to share our expertise and run training sessions on bevel gears. Please feel free to contact us for more information!

Graessner will get your gear up and running again!

Advice

Advice

Do you have any questions about your gears, lubricants or filling quantities? For example, do we need a ventilation system?

What needs to be considered when changing a bearing or a shaft seal? Does anything need to be observed before or during start-up? Do you need repair tips?

Do you need information about backlashes, bearing clearances or contact pattern settings? Just give us a call!

Inspections

Inspections

We are happy to take a look at your gear during an intermediate stop or a break for maintenance. How does the surface of the tooth flanks look?

Are there any signs of wear? Are all the seals still functional? Should the oil be changed when carrying out a transmission flush?

We can also monitor the condition of your gear, working around your machine’s runtime, and produce a condition report.

Repairs

Repairs

If your gear is no longer functional, please send it directly to us. We will provide you with a quote before beginning repairs.

You can then decide if a repair is not necessary, whether the gear can be repaired or if a new gear is needed. We aim to carry out the option you choose as quickly as possible.

Replacement parts

Replacement parts

We are also pleased to supply replacement parts for your gears.

To help you choose the right part, we can send you our repair drawings, replacement parts lists and price lists.

Please contact us if you would like a quote containing prices and delivery times or to place an order straightaway.

Emergencies

Emergencies

When time is of the essence, please call us! We aim to provide the best possible service to get your gears working again quickly.

Gear box selection

GEARFOX - simple, quick and secure
For the correct selection and dimensioning of your gear system. The design software Gearfox developed in-house by Graessner enables users to do a range of tasks right from making rough
analyses to detailed component calculations. The objective is to enable simple, definite and quick calculations of applications in the automation technology and correct dimensioning of selected components.

GEARFOX HIGHLIGHTS 

  • No installation required
  • Web-based software
  • Bearing life-time
  • Gear tooth forces
  • Efficiency factors
  • Application torques and speeds
  • Moments of inertia
  • Axial and radial forces
  • Movement cycles quadratic, cubic, quartic, quintic
  • Master-slave calculations
  • Heat balance calculation
  • Assistant for gear selection
  • Supplements of transmissions
  • Definition of new motors
Navigation