Wind turbine at sea

Mobil SHC™ Gear 320 WT

Advanced Wind Turbine Gear Lubricant

  • Safety Data Sheets (SDS)
  • Product Data Sheets (PDS)

Our Mobil SHC™ Gear 320 WT advanced wind turbine gear lubricant is a fully synthetic gear lubricant designed to protect wind turbine gearboxes operating under extreme conditions, such as extremely low or high temperatures and corrosive environments.

Mobil SHC Gear 320 WT wind turbine lubricant is formulated to provide excellent protection against conventional wear modes, such as scuffing, while also providing a high level of resistance against micropitting fatigue. This synthetic wind turbine gearbox oil comes with a 10-year warranty.

Mobil SHC Gear 320 WT wind turbine lubrication can: 

  • Maximize equipment productivity by minimizing unscheduled downtime and maintenance
  • Extend gear and bearing life under high-stress operating conditions
  • Extend oil life

Mobil SHC™ Gear 320 WT has received a second ‘design evaluation’ certification by DNV-GL, one of the world’s leading certification bodies for renewable energy projects.  The certification is in recognition of the lubricant’s in-service performance, demonstrating that it does not contribute to the oil-related effects of white etching cracks (WEC). With 60 per cent of wind turbine gearbox failures attributed to WEC, it is a serious issue for wind turbine operators that can result in costly maintenance and lost productivity.

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Data sheets

Product Data Sheets (PDS)
Safety Data Sheets (SDS)

Technical resources

ExxonMobil is first to achieve DNV GL conformity statement for wind turbine gear oil – Mobil SHC™ Gear 320 WT

Mobil SHC™ Gear 320 WT synthetic wind turbine oil has received a globally recognized accolade for reliability and cost savings

News and updates, Article

ExxonMobil Receives Second Certification for WEC Performance by DNV-GL

Certification confirms that Mobil SHC™ Gear 320 WT is proven to not contribute to the oil-related effects of white etching cracks (WEC)

News and updates, Article

How to improve safety in wind turbine maintenance

Learn what operators can do to reduce the safety risks associated with wind turbine maintenance.

Industrial application expertise, Article

All resources

Features and Benefits

Mobil SHC synthetic lubricants are recognized and appreciated around the world for innovation and outstanding performance. Mobil SHC Gear 320 WT advanced wind turbine gear lubricant was developed in close relation with key wind turbine, gearbox, and bearing OEMs to ensure exceptional performance in the rapidly evolving wind turbine gearbox designs.

 

Our scientists designed a proprietary combination of additives that resist traditional gear wear mechanisms, such as scuffing, as well as protect against micropitting with very low tendency for sludge and deposit formation. The exclusive use of next-generation PAO synthetic base oils and utilization of a novel blending approach delivers balanced performance benefits in micropitting, viscosity index, air release, and low temperature flow characteristics.

 

Mobil SHC Gear 320 WT advanced wind turbine gear lubricant offers the following features and benefits:

 

Features

Advantages and Potential Benefits

Superb protection from micropitting fatigue wear as well as high resistance to traditional scuffing wear

Helps extend gear and bearing life in enclosed gear drives operating under extreme conditions of load, speed and temperature

Helps reduce unplanned downtime and maintenance - especially critical for difficult to access gearboxes

Independently certified to not contribute to oil related effects of White Etching Cracks (WEC)

Helps reduce unplanned downtime and maintenance from premature bearing failure and gearbox replacement

Outstanding foam protection, even after fine filtration

Helps reduce risk of spillage and environmental impact. Reduces/Eliminates turbine trips due to false oil level alarms.

Excellent resistance to degradation at high temperatures

Helps reduces oil consumption and maintenance costs through extended oil life and drain intervals

Formulated with proprietary step-out low sulfur Extreme Pressure technology delivering low deposit performance, sludge formation control, and equipment component compatibility

Offers better protection of equipment and longer drain intervals for optimized maintenance costs

Outstanding cleanliness level, better than -/14/11 (ISO 4407)

Helps provide smooth, trouble-free operations in all operating conditions

Helps reduce additional on-site filtration and associated costs

Multiple equipment approvals and excellent compatibility with mineral-based gear oils

Provides performance confidence from a wide range of wind turbine OEM builders

Enables consolidated and simplified gear oil inventory management and equipment optimization in mixed turbine operations

 

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.

 

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.

 

Specifications and Approvals

This product has the following approvals:

CN Gpower

Delijia

DNV-GL

Eickhoff

Envision

GE Renewable Energy

Goldwind

Hitachi

Ishibashi Manufacturing

Mitsubishi Heavy Industries

Mitsui Miike Machinery

Moventas

Nordex

Senvion

Suzlon

Wikov

Winergy

ZF Wind Power

 

This product meets or exceeds the requirements of:

AGMA 9005-F16

DIN 51517-3:2018-09

IEC 61400-4 :2012(E)

ISO L-CKD (ISO 12925-1: 2018)

ISO L-CKSMP (ISO 12925-1: 2018)

Non-toxicity to aquatic organisms according to the GESAMP hazard evaluation procedure

 

Properties and Specifications

Property

Grade

ISO 320

Density @ 15.6 C, g/ml, ASTM D4052

0.851

Emulsion, Time to 37 mL Water, 82 C, min, ASTM D1401

15

Flash Point, Cleveland Open Cup, °C, ASTM D92

256

Foam, Sequence II, Tendency, ml, ASTM D892

0

Foam, Sequence II, Stability, ml, ASTM D892

0

FZG Micropitting, Fail Stage, Rating, FVA 54

>10

FZG Micropitting, GFT-Class, Rating, FVA 54

High

FZG Scuffing, A/8.3/90, Fail Stage, Rating, DIN 51354

14+

Kinematic Viscosity @ 100 C, mm2/s, ASTM D445

44.7

Kinematic Viscosity @ 40 C, mm2/s, ASTM D445

343

Pour Point, °C, ASTM D5950

-45

Rust Characteristics, Procedure B, ASTM D665

PASS

Viscosity Index, ASTM D2270

189

ISO 4406 cleanliness, >5 micron parts, class, ISO 4407

14 max

ISO 4406 cleanliness, >15 micron parts, class, ISO 4407

11 max

 

Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @ http://www.msds.exxonmobil.com/psims/psims.aspx

  • Enhanced wear protection
  • Extended life
  • Low foam
  • Micropitting
  • Severe operating conditions
  • Wide temperatures
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