- Circulating systems & bearings
ISO VG 320
Low-staining synthetic oil for bearings and gearboxes in aluminium rolling mills
ViscosityISO VG
Business customers only. We sell wholesale, invoiced to registered companies.
| Property | Typical value | Method |
|---|---|---|
| Copper strip corrosion, 3 h, 100 CRating | 1B | ASTM D130 |
| Density @ 15 Ckg/m3 | 1005 | ASTM D4052 |
| Flash point, Cleveland Open Cup°C | 260 | ASTM D92 |
| Kinematic viscosity @ 40 Cmm2/s | 320 | ASTM D445 |
| Pour point°C | -24 | ASTM D97 |
| Rust Characteristics, Procedure B | PASS | ASTM D665 |

Wyrol BG grades consist of a synthetic base oil combined with specially selected additives to provide good oxidation stability and rust prevention. They are recommended for flood and mist spray bearing systems and gearbox units in rolling mills, and their low staining tendency makes them particularly suitable for aluminium rolling mills. Should small quantities leak into the roll oil, they are effectively removed by active earth filters, preventing brown staining of rolled aluminium during annealing. Wyrol BG grades are not miscible with conventional bearing and gearbox lubricants, so transitioning to Wyrol BG requires specialist advice and a carefully managed changeover procedure. Available in ISO VG 220 and 320 grades, they offer excellent load-carrying capacity for effective lubrication of heavily loaded bearings and gearboxes. Benefits include low staining properties that reduce production rejects, extended roll oil life contributing to overall process efficiency, cost reduction in the rolling process, suitability for a wide temperature range, and exceptional load-carrying ability and wear protection that minimise bearing wear, applicable to both flood and mist spray systems.
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