A large manufacturer of automotive engines was having increasing reliability issues with its machining centres. This had a severe effect on manufacturing output resulting in increased costs and reduced machine productivity. Following a failed bearing analysis it was revealed that the cutting fluid was entering the bearing which was severely
affecting the lubrication. NSK proposed a sealed spindle bearing with significant improvements in bearing life.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Old bearing costs | €21.816 | New bearing costs | €7.224 | |
Bearing life | 4 months | Bearing life | More than 1 year | |
54 replacements × 4 hours / replacement × € 50/h | €10.800 | 12 replacements × 4 hours / replacement × € 50/h | €2.400 | |
Production costs: 54 replacements × 4 hours / replacement × € 1.000/h |
€216.000 | Production costs: 12 replacements × 4 hours / replacement × € 1.000/h |
€48.000 | |
Total Costs | € 248 816 | € 57 624 |
Reference:SS-E-7000