The Situation
A David Brown H2-315 parallel shaft reduction gearbox was received with significant internal damage that compromised its operational reliability. Inspection revealed cracked casing webs, oversized bearing bores, and extensive gear failure across both the first and second reduction stages. The extent of the wear and structural damage meant a comprehensive refurbishment was required to return the unit to service.
The Solution
Our engineering team carried out a full gearbox rebuild, replacing all major damaged components. A complete new gearcase was installed to address the structural issues, while a new EN24T output shaft was manufactured to original specifications.
To restore performance and durability, fully hardened and ground first and second stage gear sets were fitted. Bearings, seals, and cooling system components were also renewed as part of the overhaul. Following assembly, the gearbox underwent a complete rebuild and testing process to verify performance and operational integrity before release.
The Result
The refurbishment successfully restored the David Brown H2-315 gearbox to full working condition, providing a reliable and cost-effective alternative to replacement. With renewed gearing, a new output shaft, upgraded internal components, and a replacement gearcase, the unit has now been returned to site ready for dependable long-term service.
