A Steel maker was experiencing problems with their continuous casting machine for steel sections. The lifetime of a Cylindrical Roller Bearing mounted on a continuous cast roller was about one to two months. The casting machine had a very complicated cooling and lubricating piping system. The main problem was the high maintenance costs because of the necessary process to reconnect the piping system. NSK proposed to assemble the rollers of one segment with Sealed Spherical Roller Bearings equipped with high temperature grease. This resulted in significant improvement of the bearing performance and time saving for maintenance works.
|Before||Cost p.a.||NSK Solution||Cost p.a.|
|6 Sets of bearings per segment per year||€ 25.200||3 Sets of bearings per segment per year||€ 28.350|
|6 Replacements per year x 3 hours||€ 18.000||3 Replacements per year x 3 hours||€ 9.000|
|6 Replacements x 20 hours||€ 12.000||3 Replacements x 10 hours||€ 3.000|
|Total Costs||€ 55 200||€ 40 350|