Company Profiles
| Aspect | KLÜBER Lubrication | Mobil (ExxonMobil) |
| Founded | 1929, Munich, Germany | 1866 (Standard Oil), integrated into ExxonMobil 1999 |
| Specialization | Specialty lubricants exclusively — no fuels, no commodity oils | Full petroleum value chain — exploration, refining, fuels, lubricants |
| Approach | OEM co-engineering, application-specific formulations | Broad portfolio, multi-industry applicability |
| Key Strength | Niche, high-performance specialty greases | Global availability, supply chain scale, cost efficiency |
Product Comparison by Application
High-Speed Spindle Greases
| Specification | KLÜBER ISOFLEX TOPAS NB 52 | Mobil Polyrex EM |
| Thickener | Barium complex | Polyurea |
| Base Oil | PAO/isoparaffin | PAO |
| Speed Factor (n×dm) | Up to 2,000,000 | Up to 1,000,000 |
| Temp Range | -50°C to +130°C | -40°C to +180°C |
| Best For | Ultra-high-speed CNC spindles, DN > 1.5 million | Electric motor bearings, moderate-speed spindles |
> Tip
ISOFLEX TOPAS achieves 2× the speed rating of Polyrex EM through the barium complex thickener's superior mechanical stability under extreme shear. For spindle applications above 1.5 million n×dm, KLÜBER's barium complex technology is the proven benchmark. For standard electric motor bearings below 500,000 n×dm, both products deliver excellent performance.
Heavy-Duty EP Greases
| Specification | KLÜBER Staburags NBU 8 EP | Mobilith SHC 100 |
| Thickener | Barium complex | Lithium complex |
| Solid Lubricants | MoS₂ (molybdenum disulfide) | None (relies on EP additive chemistry) |
| Water Resistance | Excellent — barium complex repels water | Good — lithium complex with additives |
| Best For | Steel mills, water spray environments, heavy shock loads | General heavy-duty industrial, paper machines |
Food-Grade Products
| Specification | KLÜBER Klüberfood NH1 94-301 | Mobil SHC Cibus 32 (oil) / Mobilgrease FM 222 |
| Certifications | NSF H1, ISO 21469, FDA, Kosher, Halal | NSF H1 |
| Thickener | Aluminum complex | Aluminum complex |
| ISO 21469 | Yes — certified hygienic manufacturing | No |
When to Choose Each Brand
✓ Choose KLÜBER When:
- Ultra-high-speed spindle applications requiring DN > 1.5 million mm·rpm
- Specialty applications: vacuum, cleanroom, oxygen service, semiconductor
- Water-drenched environments requiring barium complex water displacement
- OEM specification requires a specific KLÜBER product
- ISO 21469 hygienic manufacturing certification required
- PFPE/PTFE greases for extreme temperature or chemical resistance
✓ Choose Mobil When:
- Standard industrial bearing applications at moderate speeds and temperatures
- Global operations requiring consistent availability in 100+ countries
- Cost-sensitive applications where specialty performance is not required
- Integrated supply chain with single-supplier simplification for oils and greases
- Applications where Mobil's extensive field engineering support adds value
Frequently Asked Questions
Q: Can I switch from KLÜBER to Mobil (or vice versa) without relubrication issues?
Switching requires verifying thickener compatibility. KLÜBER's barium complex greases are incompatible with Mobil's lithium complex products — mixing can cause softening or hardening. KLÜBER's polyurea greases and Mobil's polyurea products are generally compatible, but always verify per the grease compatibility chart. The safest approach is a complete purge of the old grease, monitoring bearing temperature and vibration during the transition period.
Q: Is KLÜBER worth the premium price?
For standard applications, the price premium may not be justified. For specialty applications — high-speed spindles, vacuum environments, extreme temperatures, or where OEM specifications mandate a specific product — the premium is justified by documented performance advantages, extended service intervals, and reduced downtime risk. A lubricant typically represents less than 1% of equipment lifecycle cost but influences over 50% of bearing failure risk. In critical applications, the cost of failure dwarfs any lubricant price premium.