Schaeffler UK was part of the team that successfully completed the replacement of the main trunnion bearings on a BOS (Basic Oxygen Steelmaking) plant at Tata Steel Port Talbot.
By replacing the drive-side trunnion bearings with split rolling bearings, Schaeffler also helped to save the customer five extra days of work. If solid rather than split bearings had been used, the customer would have had to disassemble the bull gear unit (i.e. the main drive unit for the BOS plant vessel).
TATA Steel Port Talbot has two BOS Steel making vessels (V1 & V2) in operation. The original vessel was installed in the late 1960s by UK company Ashmore, Benson, Pease & Co and was subsequently upgraded in 1991/1992 by Mannesmann Demag, including trunnion bearing replacements. Each vessel has a steel making capacity of 330 tonnes. Loss of operation of a BOS vessel would result in significant lost revenue for Tata Steel.
Simon Life, BOS Plant Departmental Engineer at Tata Steel Port Talbot comments:
Product Model | Inside Diameter | Outside Diameter | Thickness |
6864 NACHI | 320 | 400 | 38 |
6260 NACHI | 300 | 540 | 85 |