Success Story
Industry: Quarrying, Mining & Construction
Application: Conveyor Pulley - Ship Loading Conveyor
Cost Savings: € 77 376
Introduction
At an iron ore port facility in Australia, a bend pulley on a ship loading conveyor was determined to have only 6 months operating life before an exchange was determined to be necessary, due to heavy iron ore particle ingress and water contamination in the lubricant leading to short operating life. NSK Engineering designed a Spherical Roller Bearing for the ship loading conveyor application that offered the Hi-TF material solution and removable nitrile (HNBR) garter sprung seals to extend the operating life. Tough Steel is an effective countermeasure to the wear commonly found on the outer ring raceway, where the fixed load zone material wears under fine particle ingress.
- Ship Loading Conveyor
- Spherical Roller Bearing - Detachable Seal
Key Facts
- A bend pulley on a ship loading conveyor only had a 6 months operating life before it had to be exchanged
- NSK investigated the bearing failure and found out that ingress in the lubricant lead to the short operating life
- Short operating life which requires regular and costly maintenance man hours and lost production costs
- NSK Solution: Spherical Roller Bearings in H-TF material with removable nitrile seal
- Increase of bearing life time
Value Proposals
- A bend pulley on a ship loading conveyor only had a 6 months operating life before it had to be exchanged
- NSK investigated the bearing failure and found out that ingress in the lubricant lead to the short operating life
- Short operating life which requires regular and costly maintenance man hours and lost production costs
- NSK Solution: Spherical Roller Bearings in H-TF material with removable nitrile seal
- Increase of bearing life time
Product Features
- A bend pulley on a ship loading conveyor only had a 6 months operating life before it had to be exchanged
- NSK investigated the bearing failure and found out that ingress in the lubricant lead to the short operating life
- Short operating life which requires regular and costly maintenance man hours and lost production costs
- NSK Solution: Spherical Roller Bearings in H-TF material with removable nitrile seal
- Increase of bearing life time
Cost Saving Breakdown
| Before | Cost p.a. | NSK Solution | Cost p.a. | |
|---|---|---|---|---|
| Bearing Costs | € 3 511 | Bearing Costs | € 3 074 | |
| Costs of lost production | € 85 049 | Costs of lost production | € 28 350 | |
| Other Costs | € 30 607 | Other Costs | € 10 368 | |
| Total Costs | € 119 167 | € 41 791 | ||
Reference:SS-E-11-551
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