On order
Shell Omala S3 Wind
Mineral oil for wind turbine main gearboxes
ISO VG 320
Mobil SHC Gear 320 WT
PAO synthetic oil for wind turbine gearboxes, DNV-GL certified for no WEC contribution
Specifications
- Brand
- Mobil (ExxonMobil)
- Category
- Industrial gear oils
- Type
- PAO wind turbine grade
- Viscosity
- ISO VG 320
- Manufacturer code
- 201560409035
- Availability
- On order
Approved for
Typical characteristics
| Property | Typical value | Method |
|---|---|---|
| Density @ 15.6 Cg/ml | 0.851 | ASTM D4052 |
| Emulsion, Time to 37 mL Water, 82 Cmin | 15 | ASTM D1401 |
| Flash point, Cleveland Open Cup°C | 256 | ASTM D92 |
| Foam, Sequence II, Tendencyml | 0 | ASTM D892 |
| Foam, Sequence II, Stabilityml | 0 | ASTM D892 |
| FZG Micropitting, Fail stageRating | >10 | FVA 54 |
| FZG Micropitting, GFT-classRating | High | FVA 54 |
| FZG Scuffing, A/8.3/90, Fail stageRating | 14+ | DIN 51354 |
| Kinematic viscosity @ 100 Cmm2/s | 44.7 | ASTM D445 |
| Kinematic viscosity @ 40 Cmm2/s | 343 | ASTM D445 |
| Pour point°C | -45 | ASTM D5950 |
| Rust Characteristics, Procedure B | PASS | ASTM D665 |
| Viscosity index | 189 | ASTM D2270 |
| ISO 4406 Cleanliness, class | -/14/11 | ISO 4407 |
Complete documentation
We email you this product's sheets in a single archive.
Manufacturer's description
Mobil SHC Gear 320 WT is a fully synthetic industrial gear lubricant built on ExxonMobil's next-generation polyalphaolefin (PAO) technology, designed to deliver optimum equipment protection for wind turbine gearboxes and extended lubricant life even under extreme conditions. The exclusive synthetic base fluid and proprietary additive system provide balanced performance in micropitting resistance, viscosity index, air release and low-temperature flow versus other synthetic gear oils, along with a high level of resistance to micropitting fatigue and outstanding rust and corrosion protection. Mobil SHC Gear 320 WT (ISO VG 320) is recommended for lubricating main gearboxes in wind turbine power generation systems, particularly heavily loaded gearboxes with surface-hardened tooth metallurgies, and is also suitable for auxiliary gearboxes such as pitch and yaw drives, with a recommended operating temperature range of -35°C to 100°C. It is the first gear lubricant independently certified by DNV-GL as not contributing to oil-related effects of White Etching Cracks (WEC), and it meets the cleanliness level required by IEC 61400-4. The product is approved by a broad range of major OEMs including GE Renewable Energy, Siemens Gamesa, Winergy, ZF Wind Power, Moventas, Nordex, Eickhoff and Mitsubishi Heavy Industries, and meets AGMA 9005-F16, DIN 51517-3:2018-09 and ISO 12925-1:2024 classifications.
Applications
- Mobil SHC Gear 320 WT advanced wind turbine gear lubricant is recommended for lubrication of the main gearbox in wind turbine power generation systems. It is especially recommended for applications that may be subject to micropitting, especially heavily loaded gearboxes with surface-hardened tooth metallurgies, which are typically used in wind turbines. It may also be used in gear applications where extreme low and/or high temperatures are encountered and applications where corrosion may be severe. Compared to conventional gear oil chemistries, Mobil SHC Gear 320 WT advanced wind turbine gear lubricant can provide improved lubrication of gearbox rolling element bearings. Mobil SHC Gear 320 WT has a recommended operating temperature range of -35 ºC to 100 ºC. Typical applications include: • Wind turbines, especially highly loaded and shock loaded units, remotely located units and extreme temperature environments • Auxiliary gearboxes in wind turbines, such as gearmotors for pitch and yaw drives Application consideration: while Mobil SHC Gear 320 WT is compatible with mineral oil-based products, it is recommended that systems are thoroughly cleaned out and flushed before switching to Mobil SHC Gear 320 WT to achieve the maximum performance benefits.
Performance & benefits
- Superb protection from micropitting fatigue wear as well as high resistance to traditionaloperating under extreme conditions of load, speed and temperature
- scuffing wearHelps reduce unplanned downtime and maintenance - especially critical for difficult to access gearboxes
Standards & approvals
AGMA 9005-F16
ANSI/AGMA 9005-F16 (2016)
The current edition of the AGMA lubrication practice for enclosed industrial gear drives, replacing the 2002 E02 edition.
DIN 51517-3 CLP
Industrial gear oil CLP — DIN 51517, part 3
Part 3 of the German lubricating oil standard: class CLP, gear oils with extreme-pressure additives. It requires an FZG pass plus corrosion and ageing protection.
IEC 61400-4
IEC 61400-4 — wind-turbine gearboxes
The IEC design standard for wind-turbine gearboxes, including lubricant selection and testing requirements referenced by gear-oil makers.
GESAMP Hazard Evaluation Procedure
GESAMP hazard evaluation procedure
Procedure used by the UN-sponsored GESAMP expert group to evaluate the hazards of chemicals, including toxicity to aquatic organisms, in the marine environment.Source
ISO 12925-1 CTPR
Industrial gear lubricant CTPR — ISO 12925-1
Class CTPR, added in the 2024 edition of ISO 12925-1, for enclosed gear drives.
ISO 12925-1 CKSMP
Industrial gear lubricant Type CKSMP — ISO 12925
Class CKSMP: gear oils containing solid lubricants, for open or slow-running gears under very high loads.
ISO 12925-1 CKD
Industrial gear lubricant CKD — ISO 12925
Class CKD of ISO 12925-1: a gear oil with the same additive package as CKC but greater thermal stability, for gear units running hot.
FVA 54
Micropitting resistance test for gear oils
Test method of the German research association for drive technology (FVA), run on the FZG rig, that rates gear oils for micropitting resistance. Industrial and wind-turbine gearbox makers commonly require it.Source
AGMA 9005-E02
ANSI/AGMA 9005-E02 (2002)
The 2002 edition of the AGMA enclosed gear drive lubrication practice. Still widely quoted on datasheets although superseded by the 2016 F16 edition.