Inspection of main bearings to prevent considerable further damage resulting from the tower shaft moving out of position.

Scope of services

  • Disassembly of the bearing and cleaning of all parts.
  • Visual inspection of all bearing installations (e.g. spring contact system).
  • Checking of anti-friction bearings and seals.
  • Professional assembly.
  • Test report including documentation of defects and damage.
  • Repair recommendations.

Optional: Fitting of available spare parts.

Number of staff

Main bearing inspection is carried out by a single BMA service technician. The customer has to make available a second person for the entire duration of the inspection and, on request, also an additional employee.


Charges for a BMA service technician for the duration of the main bearing inspection.

1) Extraction towers with diameters > 7.60 m EUR 3,648.00
2) Extraction towers with diameters 7.90 m to 9.60 m EUR 4,864.00
3) Extraction towers with diameters > 10.60 m (up to 13.60 m) EUR 6,080.00

Additional Charges

Additional charges for travel times, and expenses for daily allowances, accommodation and travel

1) Travel times A service visit normally requires two (2) days of travel. These are calculated at the daily rate.
2) Accommodation at cost Receipts are provided.
3) Travel expenses at cost Air travel to the nearest airport, travel from local airport to the factory, etc.; receipts are provided.
4) Daily allowances at cost Allowance according to the legal requirements.

Please click here for daily allowance rates.

Billing of the order is performed once the inspection is complete and based on actual travel expenses.

All prices are net prices exclusive of VAT. Bank charges incurred in Germany are paid by BMA. All costs incurred outside Germany in connection with services and the payment for services such as taxes, bank charges and/or similar costs are paid by the customer.

Our General Terms and Conditions apply.

Payment terms

Payment immediately and in full on receipt of our invoice prepared by us based on the hours/days on the time sheets countersigned by the customer.

Appointment scheduling

We will call you a couple of days after receiving your order to arrange an inspection date. We always do our utmost to meet tight deadlines.

Preparations by the customer

To keep to a minimum the time required for a main bearing inspections, please ensure the following steps have been completed before the visit by a BMA service technician:

  • The hydraulic jack for the extraction tower is available and in working order.
  • Factory support staff have been designated who will be available if and when required.

In case of emergency

Our network is available to you worldwide. 
Please send an e-mail with a description of the problem
We will get in touch with you as soon as possible.

Contact us at