During a planned gearbox overhaul at a steel operation, 16 large spherical roller bearings were removed from a continuous casting gearbox. The original plan was straightforward: replace all 16 bearings with new units. 

This is a common approach during a major overhaul. However, large industrial bearings carry significant replacement cost, and new units can also involve long lead times. In this case, the condition and type of the bearings made it worth considering another option before placing a replacement order. 

The challenge 

The customer needed the gearbox overhaul completed without compromising reliability. The bearings were working in a demanding steel application, so any alternative to new replacement had to be technically sound. Cost saving alone would not be enough. The customer needed confidence that the bearings could return to service with proper inspection, quality control and warranty support. 

The option presented 

Instead of automatically replacing the bearings, B2K identified the potential to assess the existing units for SKF Bearing Remanufacturing. 

As the customer’s authorised SKF distributor and reliability partner, B2K was able to recognise where remanufacturing could offer value, explain the benefits, and compare the option against full replacement. This helped the customer consider SKF Bearing Remanufacturing as a practical route for reducing cost, managing lead time, and retaining value in the existing bearings. 

This gave the customer two clear options: 

• Purchase 16 new replacement bearings  

• Send the existing bearings for controlled assessment and SKF Bearing Remanufacturing, where suitable  

The customer considered SKF Bearing Remanufacturing because it offered the possibility of reducing cost, shortening lead time , and reusing existing bearing material, without treating reliability as a secondary issue. 

The process 

The bearings were sent to the SKF Circular Solutions Centre at the SKF Head Office in Johannesburg, South Africa, where they were formally inspected and assessed. 

B2K facilitated the process between the customer and SKF, helping ensure the bearings were submitted for the correct assessment and returned into the overhaul process with the required support. Each bearing was checked to confirm whether it was suitable for SKF Bearing Remanufacturing. This step is important because not every bearing can be remanufactured. Bearings with serious damage, cracking, overheating, excessive spalling or critical dimensional issues would not be approved. 

In this case, the 16 bearings were found suitable. They were then remanufactured through a controlled SKF process, inspected, protected, packaged and returned for use in the gearbox application.

The result 

The customer avoided the full cost of replacing all 16 bearings with new units. 

The project delivered: 

• Approximately 59% cost saving compared with new replacement bearings  

• 900 kg of steel reused  

• 3 513 kg of CO₂e emissions avoided  

• SKF warranty support on the remanufactured bearings  

The bearings were returned to service through a controlled SKF Remanufacturing process, giving the customer a lower-cost option without stepping away from the reliability expectations required in a steel plant. 

Why it mattered 

This project showed that bearing replacement does not always have to be the default decision. 

For large bearings, especially in planned maintenance environments, there may be value left in the existing units. The key is knowing when to replace and when to assess for SKF Bearing Remanufacturing. 

In this case, B2K helped the customer make that decision based on cost, lead time, reliability, and asset value. The result was a practical maintenance outcome: lower cost, reduced waste and a gearbox overhaul supported by a more considered bearing strategy.