Mobil SHC 626

Exceptional Performance Gear and Bearing Oils

Mobil SHC™ 600 Series lubricants are exceptional performance gear and bearing oils designed to provide outstanding service in terms of equipment protection, oil life and problem-free operation helping to enable increased customer productivity. These scientifically engineered oils are formulated using the latest proprietary and patent pending Mobil SHC technology to provide outstanding and balanced performance in demanding applications at high and low temperatures. Mobil SHC 600 products feature excellent low temperature properties, as well as improved air release performance in the lower viscosity grades. These products are resistant to mechanical shear, even in heavily loaded gear and high shear bearing applications, so that there is virtually no loss of viscosity.

 

Mobil SHC 600 Series products have low traction coefficients relative to mineral oils which derive from the molecular structure of the base stocks used. This results in low fluid friction in the load zone of non-conforming surfaces such as gears and rolling contact bearings. Low fluid friction produces lower operating temperatures and improved gear efficiency, which translates into reduced power consumption. Mobil SHC 600 Series products have demonstrated up to 3.6% improvement in energy efficiency in controlled laboratory testing(*). Mobil SHC 600 Series formulation also provides excellent resistance to oxidation and deposit formation at elevated temperatures, as well as exceptional resistance to rusting and corrosion, antiwear, demulsibility, foam control and air release properties, and multi-metal compatibility. Mobil SHC 600 Series oils maintain good compatibility with seals and other materials used in equipment normally lubricated with mineral oils.

 

Mobil SHC 600 Series lubricants are suitable for use in a wide range of equipment, not only as high temperature problem solvers, but also because of the other benefits they offer.

 

(*) Energy efficiency relates solely to the performance of Mobil SHC 600 when compared to conventional (mineral) reference oils of the same viscosity grade in circulating and gear applications. The technology used allows up to 3.6% efficiency compared to the reference when tested in a worm gearbox under controlled conditions. Efficiency improvements will vary based on operating conditions and application.

 

Datasheet

Energy Efficiency logo

Features and Benefits

The Mobil SHC brand of lubricants are recognized and appreciated around the world for their innovation and outstanding performance. These synthetic products, molecularly designed and pioneered by our research scientists, embody the continuing commitment to using advanced technology to provide outstanding lubricant products. The development of Mobil SHC 600 Series was preceded by close contacts between our scientists and application specialists with key Original Equipment Manufacturers (OEMs) to ensure that the products provide exceptional performance in the continually evolving industrial equipment designs.

 

Our work with key equipment builders has helped confirm the results from our own laboratory and rig tests showing the exceptional performance of Mobil SHC 600 Series lubricants. Not least among the benefits, shown in work with OEMs, is the potential for energy efficiency improvements up to 3.6% relative to mineral oils (*). These benefits are particularly evident in equipment with a high level of mechanical losses, such as high ratio worm gears.

 

To develop the latest Mobil SHC technology for Mobil SHC 600 Series oils, our product formulation scientists chose select base oils because of their exceptional thermal/oxidative resistance potential and combined them with a balanced additive system, which complements the inherent benefits of the base oils to provide excellent oil life, deposit control and resistance to thermal/oxidative and chemical degradation. This formulation approach provides low temperature fluidity characteristics exceeding that of many conventional mineral products and is a key benefit for remote, low ambient temperature applications. Mobil SHC 600 Series oils offer the following features and potential benefits:

(*) Energy efficiency relates solely to the performance of Mobil SHC 600 when compared to conventional (mineral) reference oils of the same viscosity grade in circulating and gear applications. The technology used allows up to 3.6% efficiency compared to the reference when tested in a worm gearbox under controlled conditions. Efficiency improvements will vary based on operating conditions and application.

 

Features

Advantages and Potential Benefits

Superb high temperature thermal/oxidation resistance

Helps extend equipment high temperature operating capability

Long oil life, helps reduce maintenance costs

Helps minimize deposits to enable trouble-free operation and long filter life

High Viscosity Index and absence of wax

Maintains viscosity and film thickness at high temperatures

Helps enable exceptional low temperature performance, including start-up

Low traction coefficient

Helps reduce friction and increase efficiency in sliding mechanisms such as gearing, with potential for reduced power consumption and lower steady-state operating temperatures.

Helps minimize the effects of micro slip in rolling contact bearings to potentially extend rolling-element life

High load carrying capability

Helps protects equipment and extends life; helps minimize unexpected downtime and extends service periods

Balanced additive combination

Provides excellent performance in terms of rust and corrosion prevention, water separability, foam control and air release performance enabling problem-free operation in a wide range of industrial applications, and reduced operating costs

 

Applications

While Mobil SHC 600 Series are generally compatible with mineral oil based products, admixture may detract from their performance. Consequently it is recommended that before changing a system to one of Mobil SHC 600 Series products, it should be thoroughly cleaned out and flushed to achieve the maximum performance benefits. Mobil SHC 600 Series oils are compatible with most NBR, FKM and most other elastomeric seal materials that are used with mineral oils. There is the potential for substantial variations in the elastomers. For best results, consult your equipment supplier, seal manufacturer, or your local company representative to verify compatibility.

 

 Mobil SHC 600 Series lubricants are recommended for use in a wide variety of gear and bearing applications where high or low temperatures are encountered or where operating temperatures or bulk oil temperatures are such that conventional lubricants give unsatisfactory life, or where improved efficiency is desired. They are particularly effective in applications where the maintenance costs of component replacement, system cleaning and lubricant changes are high. Specific applications require selection of the appropriate viscosity grade and include:

     •  Filled for life gearboxes, especially high ratio/ low-efficiency worm gears

     •  Remotely located gearboxes, where oil change-out is difficult

     •  Low temperature applications, such as ski lifts where seasonal oil changes can be avoided

     •  Mixer roll bearings and roll neck bearings where high temperatures are encountered

     •  Plastic calenders

     •  Severe centrifuge applications, including marine centrifuges

     •  Railroad A/C Traction Drives

     •  Mobil SHC 626, 627, 629 and 630 are suitable for Oil Flooded Rotary Screw Compressors compressing natural gas, field gas gathering, CO2 and other process gasses used in the natural gas industry

     •  Mobil SHC 629, 630, 632, 634, 636, and 639 are approved by Siemens AG for use in Flender gearboxes

 

Specifications and Approvals

 

This product has the following approvals:

624

625

626

627

629

630

632

634

636

639

Flender

 

 

 

 

X

X

X

X

X

 

GE D50E32 AC Traction Motor

 

 

 

 

 

 

 

X

 

 

SEW-Eurodrive

X

 

X

 

X

X

X

X

X

X

 

This product is recommended for use in applications requiring:

624

625

626

627

629

630

632

634

636

639

Fives Cincinnati P-34

 

 

 

 

 

 

 

 

X

 

Fives Cincinnati P-63

 

 

X

 

 

 

 

 

 

 

Fives Cincinnati P-76

 

 

 

X

 

 

 

 

 

 

Fives Cincinnati P-77

 

 

 

 

X

 

 

 

 

 

Fives Cincinnati P-78

 

 

 

 

 

 

 

 

 

X

Fives Cincinnati P-80

 

 

X

 

 

 

 

 

 

 

 

This product meets or exceeds the requirements of:

624

625

626

627

629

630

632

634

636

639

AGMA 9005-F16

X

X

X

X

X

X

X

X

X

X

DIN 51517-3:2018-09

 

 

 

X

X

X

X

X

X

X

ISO L-CKB (ISO 12925-1:2024)

X

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

X

X

X

X

X

ISO L-CKD (ISO 12925-1:2024)

 

X

X

X

X

 

 

 

 

 

 

Properties and Specifications

Property

624

625

626

627

629

630

632

634

636

639

Grade

ISO VG 32

ISO VG 46

ISO VG 68

ISO VG 100

ISO VG 150

ISO VG 220

ISO VG 320

ISO VG 460

ISO VG 680

ISO VG 1000

Appearance, AMS 1738

Orange

Orange

Orange

Orange

Orange

Orange

Orange

Orange

Orange

Orange

Copper Strip Corrosion, 24 h, 121 C, Rating, ASTM D130

1B

1B

1B

1B

1B

1B

1B

1B

1B

1B

Density @ 15.6 C, kg/l, ASTM D4052

0.85

0.85

0.86

0.86

0.86

0.87

0.87

0.87

0.87

0.87

Emulsion, Time to 37 mL Water, 54 C, min, ASTM D1401

10

15

15

 

 

 

 

 

 

 

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

 

 

 

15

20

20

20

20

20

25

FE8 wear test, V50 roller wear, mg, DIN 51819-3

 

 

 

2

2

2

2

2

2

2

FZG Scuffing, Fail Load Stage, A/8.3/90, ISO 14635-1(mod)

11

12

12

12

13

13+

13+

13+

13+

13+

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

236

225

225

235

220

220

225

228

225

222

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

6.3

8.5

11.6

15.3

21.1

28.5

38.5

50.7

69

98.8

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

32

46

68

100

150

220

320

460

680

1000

Pour Point, °C, ASTM D5950

-57

-54

-54

-48

-48

-48

-48

-45

-45

-42

Rotating Pressure Vessel Oxidation Test, min, ASTM D2272

2500

2500

2500

2500

2500

2500

2500

2500

2500

2500

Rust Characteristics, Procedure B, ASTM D665

PASS

PASS

PASS

PASS

PASS

PASS

PASS

PASS

PASS

PASS

Turbine Oil Stability Test, Life to 2.0 mg KOH/g, h, ASTM D943

10,000+

10,000+

10,000+

10,000+

10,000+

10,000+

10,000+

10,000+

10,000+

10,000+

Viscosity Index, ASTM D2270

148

161

165

162

166

169

172

174

181

184

 

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