Mobilgear SHC MT 68

Standards & approvals

• 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.

• 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.

• AGMA 9005-F16

  ANSI/AGMA 9005-F16 (2016)

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

Specifications

Brand

Mobil (ExxonMobil)

Range

Mobilgear

Category

Marine lubricants

Viscosity

ISO VG 68

Manufacturer code

201540302510

Availability

On request

Typical characteristics

Manufacturer's description

Mobilgear SHC MT 68 is a premium performance, fully synthetic marine gear oil designed to provide optimum equipment protection and oil life even under extreme conditions. Its polyalphaolefin (PAO) base stock offers exceptional oxidation resistance and thermal properties, a naturally high viscosity index, excellent low-temperature fluidity and freedom from undesirable compounds found in mineral oils; the high viscosity index and low traction coefficient can also reduce power consumption in many gear drives. The product's carefully blended additive system provides excellent protection against conventional wear modes such as scuffing, plus a high level of resistance to micropitting fatigue, exceeding industry bearing wear protection requirements as measured by the FAG FE 8 test, while maintaining compatibility with industry-standard gearbox seal materials. It is recommended for enclosed marine gear drives including steel-on-steel spur, helical and bevel gears, and was specifically designed for heavy-duty marine thruster/azimuth gear applications requiring an ISO VG 68 gear oil with extreme-pressure additive protection; it holds approvals from major marine thruster OEMs such as Brunvoll. Note that mixing with mineral oil products can detract from performance, so systems should be thoroughly cleaned and flushed before conversion. Mobilgear SHC MT 68 meets or exceeds ISO L-CKD (ISO 12925-1:2024), DIN 51517-3:2018-09 and AGMA 9005-F16. Benefits include superb protection from micropitting fatigue and scuffing wear, excellent resistance to high-temperature degradation for extended oil life and drain intervals, low-traction PAO base stocks for improved gear efficiency and reduced energy consumption, a high viscosity index for stable operation across temperature extremes, and excellent rust, corrosion and demulsibility performance, including in seawater and acidic water conditions.

Applications

• Mobilgear SHC MT 68 is a premium-performance, fully synthetic marine gear oil designed to provide optimum equipment protection and oil life, even under extreme conditions.
• It is formulated to resist micropitting of modern gearing and can operate in both high- and low-temperature environments.
• It was designed especially for marine thruster/azimuth gear drives requiring an ISO 68 viscosity gear oil with extreme-pressure (EP) additive protection.
• Mobilgear SHC MT 68 has approvals from major marine thruster OEMs such as Brunvoll.
• Compatible with mineral-oil-based products, though admixture may reduce performance; before changing a system to Mobilgear SHC MT 68, it should be thoroughly cleaned out and flushed to achieve the full performance benefits.

Performance & benefits

• Superb protection from micropitting fatigue wear, along with high resistance to traditional scuffing wear: extends gear and bearing life in marine enclosed gear drives operating under extreme conditions of load, speed and temperature.
• Excellent resistance to degradation at high temperature: extends oil life and drain intervals, reducing oil consumption and manpower costs.
• Low-traction PAO base stocks improve gear efficiency: reduce energy consumption and lower operating temperatures.
• High-viscosity-index base stocks reduce viscosity change with temperature: enables operation at both high and low temperatures, especially critical in marine applications.
• Excellent resistance to rust and corrosion, and very good demulsibility: smooth, trouble-free operation at high temperatures or in water-contaminated applications.
• No filter plugging, even in the presence of water: fewer filter changes and reduced maintenance costs.
• Excellent compatibility with common gearbox materials of construction and with mineral-based gear oils: easy changeover from mineral products.

Fits

• Ships & vessels