SUTOR Global s.r.o. executed the project of replacing the input pinion shaft bearings in the industrial gearbox HYOSUNG SHB90-68PRH for the plant NEXEN TIRE Europe s.r.o.
The aim of the contract was the complete replacement of bearings and restoration of the functional geometry of the shaft while maintaining high precision and operational reliability of the gearbox system with a power of 2250 kW.
The work took place in August 2025 and included both dismantling activities directly on-site and workshop repairs and measurements at the SUTOR Global premises.
The scope of activities included:
- Dismantling of floor segments and beams above the gearbox
- Dismantling of lubrication oil lines and gearbox cover
- Removal of the pinion shaft with bearings and their transport to SUTOR Global workshops
- Inspection and precise measurement of the shaft after dismantling, assessment of component condition and repair proposal
- Replacement of bearings, repairs, and installation of new parts according to approved documentation
- Laser alignment of the assembly after reassembly
- Completion of lubrication system piping
- Preparation of the final repair report including a measurement protocol and inspection record after commissioning
The repair was carried out in collaboration with customer representatives on-site, with an emphasis on assembly precision and quality of geometric alignment.
Technical specifications of the equipment
- Gearbox manufacturer: HYOSUNG
- Type: SHB90-68PRH
- Power: 2,250 kW
- Speed (input/output): 1000 / 63 and 57 rpm
- Dimensions (H/W/L): 1900 × 2400 × 3750 mm
- Gearbox weight: 20.5 t
Project details
- Project investor: NEXEN TIRE Europe s.r.o.
- Client: NEXEN TIRE Europe s.r.o.
- Project implementation: SUTOR Global s.r.o.
- Implementation date: 08/2025
- Location: NEXEN TIRE Europe Plant, Žatec
By executing this contract, SUTOR Global confirmed its expertise in the field of precise repairs of gearbox systems and rotating machinery.
The project was successfully completed within the prescribed timeframe and with guaranteed precision of alignment 0.02 mm, ensuring long-term reliability and safe operation of the HYOSUNG gearbox.