A large producer of chewing gum was experiencing repeated bearing failures on their Dip Tank Conveyor Nose Roller. Bearings were needing changed approximately every 7 weeks which involved high maintenance costs and regular unplanned machine down time. NSK analyzed the applicaiton and discovered the bearing arrangement of three Deep Groove Ball Bearing Units assembled together flush, one set each side of the roller was an adequate arrangement for this type af applicaiton. This arrangement did not share the load and was affected by axial preload. NSK proposed placing a spacer between each bearing to separate them and aviod axial loading. A test was initiated which resulted in an immediate improvement and significant lifetime extension.
Before | Cost p.a. | NSK Solution | Cost p.a. | |
---|---|---|---|---|
Lost Production: 8 hours | $92,132 | Lost Production: 1 hour | $11,516 | |
- Bearings - Spacer - Shaft & Roller |
$3,079 | - Bearings - Spacers - Shaft & Roller |
$374 | |
Labor Costs: 8 hours | $2,883 | Labor Costs: 1 hour | $360 | |
Total Costs | $98,094 | $12,250 |
Reference:SS-E-2065