On order
Mobil Polyrex 461 EP
Polyurea EP grease with solid additives for heavily loaded bearings up to 170 °C
NLGI 1
Specifications
- Brand
- Mobil (ExxonMobil)
- Category
- Industrial greases
- Viscosity
- NLGI 1
- Manufacturer code
- 2015A0202090
- Availability
- On order
Manufacturer's description
Mobilgrease XTC is a premium, high-performance lithium complex grease (NLGI 1) developed specifically for high-speed coupling applications. It is formulated to provide low oil bleed together with high-temperature stability — properties critical to modern coupling lubrication — while its heavy-duty additive package reduces friction and wear from sliding tooth contact and provides rust and corrosion protection. ExxonMobil formulated Mobilgrease XTC to meet or exceed the requirements of modern high-speed gear and grid coupling designs, including AGMA Type CG-3 (high-torque, high-misalignment spindle couplings), CG-2 (high-speed flexible gear and grid couplings), and the less demanding CG-1. It maintains excellent performance up to 120°C ambient temperature and is not recommended below -30°C; because of its high viscosity and adhesive character, hand grease guns should not be used at low ambient temperatures without auxiliary heat. Typical applications include grid-type and gear-type flexible couplings across a broad range of industries. Key benefits include excellent resistance to oil separation for reduced leakage, strong EP/anti-wear protection even under misalignment, long grease life from excellent high-temperature stability, and good resistance to rust and corrosion in aqueous environments.
Applications
- Application Considerations: Because Mobilgrease XTC is highly viscous and has adhesive agents to address coupling demands, use of hand- operated grease guns at low ambient temperatures without auxiliary heat is discouraged. Mobilgrease XTC fully meets AGMA Type CG-3 requirements for high-torque, high-misalignment spindle couplings and AGMA Type CG-2 requirements for high-speed flexible gear and grid couplings. Mobilgrease XTC also meets less demanding AGMA Type CG-1 requirements. Mobilgrease XTC maintains its excellent performance characteristics in ambient temperatures up to 120º C. It is not recommended for temperatures below -30º C. Mobilgrease XTC is used widely in industrial applications requiring the use of: • Grid-type flexible couplings • Gear-type flexible couplings
Performance & benefits
- Excellent resistance to oil separationHelps reduce leakage, helping improve reliability and coupling protection
- Excellent EP / Antiwear protectionHelps reduce coupling wear, even when misaligned helping to lower maintenance costs
- Excellent high temperature stabilityLong grease life and helping to extend intervals between relubrication
- Good resistance to rust and corrosionMaintains excellent grease performance even in tough aqueous environments
Standards & approvals
Approved for
Typical characteristics
| Property | Typical value | Method |
|---|---|---|
| Thickener type | Grease - Lithium complex | |
| Copper strip corrosion, 24 h, 100 CRating | 1A | ASTM D4048 |
| Timken OK load, lb | 50 | ASTM D2509 |
| Corrosion Preventive PropertiesRating | Pass | ASTM D1743 |
| Centrifugal Oil separation, High G Force, 24 h, 50 Cvol% | 1 | ASTM D4425 |
| Four-Ball Wear Test, Scar Diametermm | 0.43 | ASTM D2266 |
| Colour | Dark Brown | Visual |
| Penetration, change from 60X to 10, 000X% | 20 | ASTM D217 |
| Oxidation stability, Pressure Drop, 100 h, kPa | 41 | ASTM D942 |
| Four-Ball Extreme pressure Test, Weld pointkgf | 400 | ASTM D2596 |
| Dropping point°C | 279 | ASTM D2265 |
| Penetration, 60X, 0.1 mm | 325 | ASTM D217 |
| Viscosity @ 40 C, Base oilmm2/s | 680 | ASTM D445 |
Complete documentation
We email you the sheets listed below in a single archive. No account, no order required.
- SDS
- SDS
- TDS