Success Story
Industry: Paper
Application: Paper Roll
Cost Savings: $480,000
Introduction
Key Facts
- A major paper mill was experiencing multiple inner ring crack on their calendar roll
- Standard spherical bearing was being used without carburized inner rings
- 12 failures annually
- Excessive downtime and maintenance
- TL Spherical Roller Bearing
Value Proposals
- NSK investigated the failed competitors bearings
- Application review was conducted by NSK engineers
- It was determined that the high heat in the application was causing the bearings inner rings to crack
Product Features
- Innovative chemical steel composition
- Special heat treatment process
- High strength inner and outer rings
- Heat resistant to cracks
- Greater resistance to hoop stress
- Longer service life- more than twice that of conventional bearings operation under contaminated conditions
- Greater dimensional stability under high temperatures ( to 200 C).
Cost Saving Breakdown
| Before | Cost p.a. | NSK Solution | Cost p.a. | |
|---|---|---|---|---|
| Bearings: 12 @$10,000 | $120,000 | Bearings: 6 @ $10,000 | $60,000 | |
| Downtime: 4 hrs @ $1,500/hr x 6 | $36,000 | Downtime: Eliminated | $0 | |
| Total Costs | $156K x 5yrs= $780K | $60K x 5yrs= $300K | ||
Reference:SS-E-
