Gearbox Inspection & Repair

Gearbox Inspection & Repair

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How we work - the fastest gearbox repair - 24/7

Stork Gears & Services is a specialized gearbox repair company.

As an independent repair company, we overhaul all sorts of gearboxes and related drive types. We are active in high-demand market segments (marine, industry, wind), where our customers expect the fastest response in order to minimize downtime costs. We therefore offer worldwide gearbox support 24 hours a day. We work in continuous shifts 7 days a week, always providing our customers the fastest gearbox repair.

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Our gearbox repair procedure

We are able to deliver high quality gearbox repair services through our standardized repair procedure. The first step is to establish the condition of the gearbox with glear clearances, contact patterns and bearing settings, all being carefully recorded before the gearbox is dismantled. After the investigation is complete, the best available option will be diskussed with the client; a standard overhaul or a complete gearbox repair. 

When a service request for a gearbox arrives the procedure below is followed. This can be done either on site or in our workshops. 

 

Gearbox repair procedure 1
 
Step 1
24h support for emergency gearbox breakdown
An offshore supply vessel suffers from severe onboard gearbox damage. The delivery time for a new, OEM-built gearbox is 11 months. The customer contacts Stork Gears & Services for emergency gearbox repair. 
Gearbox Repair procedure 2
 
Step 2 
On-site inspection and dismantling of the gearbox
An engineer from Stork Gears & Services visits the site of the customer and determines the condition of the gearbox, bearing settings, gear clearance and gearing size and cracks examination. Stork Gears & Services informs the customers about the estimated scope and cost of the project.
Gearbox repair procedure 3
 
Step 3 
Fast transport to our workshop
The damaged parts of the gearbox will be transported by plane, ship or truck (depending on customer's location and wishes). Our workshop is fully equipped with the most modern equipment and innovative tools to offer our customers the fastest gearbox repair worldwide. Instead of sending the parts to Rotterdam, we can also send an engineer to the customer's site to draw or copy the parts*.
Gearbox Repair procedure 4 Step 4 
Disassembly of the gearbox, inspection report and failure analysis
In our workshop the gearbox will be carefully dismantled. Our Service Department has a wide range of specialized tools in order to determine the condition of the gearbox. An inspection report and damage analysis will be performed and send to the customer together with a quotation and full repair advice.
Gearbox Repair procedure 5 Step 5 
Fast gearbox repair & manufacturing of the supplies
The gearbox will be overhauled in our workshop and the spare parts will be manufactured or purchased. Our extensive inhouse-facilities enables us to offer our customers complete gearbox services, for example:
  • vertical and horizontal turning; (CNC) boring and milling; grinding and slotting of keyways; lasercladding of shafts; 
  • vibration measurements; condition monitoring;
  • hardened gearwheel manufacturing with class approval (Lloyds Register of Shipping, Rina, Germanische Lloyds, Det Norske Veritas (DNV), The American Bureau of Shipping). Read more about Classification.
Gearbox Repair procedure 6 Step 6 
Gearbox assembly and advanced testrun
The gearbox with new parts is assembled. Bearing and gear clearance are adjusted and contact patterns are recorded. We can grind the gears in our gear-cutting department, if, due to circumstances, the gear clearance or contact patterns are not in accordance with the specifications. This will result in the gearbox being within the specifications. Once the gearbox has been assembled correctly, it will be tested for 4 hours on our testbed.
Gearbox Repair procedure 7 Step 7 
Transportation & onsite assembly of the gearbox and related parts
All results will be contained within our report, which will be handed over to the client complete with all documents (including any certificates) after the overhaul. The gearbox and related parts will be assembled on board. The ship will be able to set sail again after just six weeks!

* Reverse Engineering

If in some cases the client does not have the technical data of the gearbox to be overhauled. We therefore use reverse engineering to "copy" the existing parts to be replaced. This means that these new parts at least comply with the specifications of the original parts. A delivery time of one day is guaranteed for a simple gear and three weeks for carbonized or nitrated internal works.

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