Mobil SHC Gear 320 (PAIL)

SKU# XOM121325

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Quick Overview

This product has a lead time of 10-14 business days.

Mobil SHC Gear 320 is a premium performance ISO Viscosity Grade (VG) 320 synthetic extreme pressure (EP) gear oil. It is designed to provide outstanding gear and bearing protection even under extreme conditions. Mobil SHC Gear 320 is scientifically engineered from synthetic base fluids that have exceptional oxidation and thermal properties and excellent low temperature fluidity. Mobil SHC Gear 320 exhibits outstanding compatibility with elastomers in static seal tests. It has outstanding EP properties.

Mobil SHC Gear 320 is recommended for enclosed industrial gear drives where ISO VG 320 oils are recommended. It is especially recommended for applications that may be subject to micropitting: especially heavily loaded gearboxes with surface-hardened tooth metallurgies.

Product Data Sheet

Mobil SHC Gear 320 Pail

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  • Mobil SHC Gear 320 Pail

Mobil SHC Gear Series lubricants are part of the Mobil SHC line of products that are recognized and appreciated around the world for innovation and outstanding performance. These synthetic products, pioneered by our research scientists, symbolize the continuing commitment to using advanced technology to provide lubricants with excellent balanced performance. A key factor in the development of Mobil SHC Gear Series was the close contacts between our scientists and application specialists with key OEMs to ensure that our product offering would provide exceptional performance with rapidly evolving industrial gear designs and operation. Not least among the benefits shown in work with OEMs is the ability to resist micropitting wear which can occur with some highly loaded, case-hardened gearing applications. This cooperative work also demonstrated the all-round balanced performance benefits for the new Mobil SHC Gear technology, including a wide temperature range of application.

To address the issue of micropitting wear, our product formulation scientists designed a proprietary combination of additives which would resist traditional gear wear mechanisms as well as protecting against micropitting. Mobil SHC Gear products provide exceptional oil life and deposit control and resistance to thermal/oxidative and chemical degradation, as well as the balance of the performance features. The patent-pending combination of synthetic base oils also provides exceptional low temperature fluidity characteristics unmatched by conventional mineral oil gear lubricants and is a key benefit for remote, low ambient temperature applications. The Mobil SHC Gear Series lubricants offer the following potential benefits:

FeaturesAdvantages and Potential Benefits
Superb protection from micropitting fatigue wear as well as high resistance to traditional scuffing wearHelps extend gear and bearing life in enclosed gear drives operating under extreme conditions of load, speed and temperature
Helps reduce unplanned downtime; less maintenance - especially critical for difficult to access gearboxes.
Excellent resistance to degradation at high temperaturesHelps extend oil life and drain intervals and reduce oil consumption, which can lower maintenance costs
Low tractionHelps reduce energy consumption and lower operating temperatures
High viscosity index equating to reduced viscosity change with temperatureAbility to operate at both high and low temperatures: especially critical in remote applications with no oil cooling or heating
Excellent resistance to rust and corrosion and very good demulsibilityHelps to ensure smooth, trouble-free operation at high temperatures or in applications subject to water contamination
Excellent compatibility with a variety of soft metals
Excellent shear stabilityHelps extend gear and bearing life
Resistence to filter plugging, even in the presence of waterFewer filter changes; which can help reduce maintenance costs
Excellent seal compatibilityLess contamination and lower potential for oil leakage
Excellent compatibility with common gearbox materials and with mineral-based gear oilsEasy changeover from many mineral products


Application Considerations: While the Mobil SHC Gear Series are compatible with mineral oil based products, admixture may detract from their performance. Consequently it is recommended that before changing a system to one of the Mobil SHC Gear Series, it should be thoroughly cleaned out and flushed to achieve the maximum performance benefits.
Mobil SHC Gear Series exceptional performance, synthetic industrial gear oils are designed to provide optimum equipment protection and oil life even under extreme conditions. They are especially formulated to resist micropitting of modern, case hardened gearing and can operate in both high and low temperature environments. Typical applications include:

  • Modern, highly loaded gearboxes used in the paper, steel, oil, textile, lumber and cement industries where gear protection and optimum oil life are required.
  • Plastic extruder gearboxes



Mobil SHC Gear meets or exceeds the following industry specifications1502203204606801000
Meets AGMA 9005-E02XXXXXX
Meets DIN 51517 Part 3 (CLP)XXXXXX
Meets ISO 12925-1 Type CKDXXXXX 
Meets ISO 12925-1 Type CKTXX    


Mobil SHC Gear has the following builder approvals1502203204606801000
SIEMENS AG Flender gear units, T 7300, Table A-c, Flender Code No.A36A35A34A33A32A31
SEW Eurodrive

Typical Properties

Mobil SHC Gear Series1502203204606801000
ISO Viscosity Grade1502203204606801000
Viscosity, ASTM D 445      
cSt @ 40º C1502203204606801000
cSt @ 100º C22.230.440.654.175.599.4
Viscosity Index, ASTM D 2270176180181184192192
Pour Point, ºC, ASTM D 97-54-45-48-48-42-33
Flash Point, ºC, ASTM D 92233233233234234234
Brookfield @ 0 º F (-18 º C), cP, ASTM D 2983    4100096000
Brookfield @ -20 º F (-28 º C), cP, ASTM D 2983182003500057000107000156000500000
Density 60 º F, g/cc0.860.860.860.860.860.87
Total Acid Number, mg KOH/g, ASTM D 6640.
4 Ball EP Test, kgf, ASTM D 2783      
Weld Load200200200200200200
Load Wear Index515151515151
FZG Micropitting, FVA Proc No. 54, 90°C      
Fail Stage101010101010
FZG Scuffing, ISO 14635-1 (mod) A/8.3/90, Fail Stage131414141414
FZG Scuffing, ISO 14635-1 (mod) A/16.6/90, Fail StageNot tested>14>14>14>14>14
Copper Corrosion, 3H @ 121°C, ASTM D 1301B1B1B1B1B1B
Rust protection, ASTM D665, Sea WaterPassPassPassPassPassPass
Demulsibility of EP Oils, Free Water, ml, ASTM D 27118887858487 
Water Separability, ASTM D 1401,Time to 40/37/3 at 82º C, minutes101010152540
Foaming Characteristics, ASTM D 892,Seq. II, Tendency/Stability, ml/ml0/00/00/020/00/00/0