Mobil SHC Gear 320 WT

Approved by

• ZF
• Mitsubishi
• Siemens
• GE
• Mitsubishi Heavy Industries
• Moventas
• Nordex
• Senvion
• Wikov
• Winergy
• Siemens Gamesa
• Eickhoff
• Goldwind
• Hitachi
• Ishibashi Manufacturing
• Mitsui Miike Machinery
• NGC

Standards & approvals

• AGMA 9005-F16

  ANSI/AGMA 9005-F16 (2016)

  The current edition of the AGMA lubrication practice for enclosed industrial gear drives.

• DIN 51517-3 CLP

  Industrial gear oil CLP — DIN 51517, part 3

  Class CLP, gear oils with extreme-pressure additives; 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, with lubricant selection and testing requirements.

• GESAMP Hazard Evaluation Procedure

  GESAMP hazard evaluation procedure

  Procedure of the UN-sponsored GESAMP expert group for evaluating the hazards of chemicals in the marine environment, including toxicity to aquatic organisms.

Specifications

Brand

Mobil (ExxonMobil)

Range

Mobil SHC

Category

Industrial gear oils

Type

PAO wind turbine grade

Viscosity

ISO VG 320

Manufacturer code

201560409035

Availability

On request

Typical characteristics

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

• Advanced wind-turbine gear lubricant recommended for lubrication of the main gearbox in wind-turbine power-generation systems.
• Especially recommended for applications subject to micropitting, particularly heavily loaded gearboxes with surface-hardened tooth metallurgies typically used in wind turbines.
• May also be used in gear applications with extreme low and/or high temperatures, or where corrosion may be severe.
• Can provide improved lubrication of gearbox rolling-element bearings compared to conventional gear-oil chemistries.
• Recommended operating temperature range of -35°C to 100°C.
• Wind turbines, especially highly loaded and shock-loaded units, remotely located units and extreme-temperature environments.
• Auxiliary gearboxes in wind turbines, such as gear motors for pitch and yaw drives.
• Before switching to Mobil SHC Gear 320 WT, systems should be thoroughly cleaned out and flushed to achieve maximum performance benefits.

Performance & benefits

• Superb protection from micropitting fatigue wear, as well as high resistance to traditional scuffing wear, operating under extreme conditions of load, speed and temperature.
• Helps reduce unplanned downtime and maintenance — especially critical for gearboxes that are difficult to access.
• Developed in close relation with key wind-turbine, gearbox and bearing OEMs to ensure exceptional performance in rapidly evolving gearbox designs.
• Proprietary additive combination resists traditional gear-wear mechanisms, such as scuffing, and protects against micropitting with very low tendency for sludge and deposit formation.
• Next-generation PAO synthetic base oils and a novel blending approach deliver balanced performance in micropitting resistance, viscosity index, air release and low-temperature flow.

Fits

• Wind turbines