What is Klüber Staburags NBU?
Klüber Staburags NBU is a heavy-duty multi-purpose bearing grease manufactured by Klüber Lubrication, a Germany-based global specialist in specialty industrial lubricants. It is engineered for Rolling and plain bearings in machine tools and related industrial applications requiring reliable, long-term lubrication performance.
This product belongs to the Klüber Staburags NBU family, recognized in the industrial lubrication industry for contains solid lubricants (mos2 in some grades); high load-carrying capacity; industry standard for heavy-duty applications. The formulation combines mineral oil as the base oil with barium complex soap as the thickener system, operating within a temperature range of -20°C to +150°C.
Technical Specifications
| Brand |
KLÜBER (Klüber Lubrication München GmbH & Co. KG) |
| Product Line |
Klüber Staburags NBU |
| Product Type |
Heavy-Duty Multi-Purpose Bearing Grease |
| Base Oil |
Mineral oil |
| Thickener |
Barium complex soap |
| NLGI Grade |
2 (typical; varies by grade: NBU 12 = NLGI 2, NBU 4 = NLGI 2, NBU 8 EP = NLGI 2 with solid lubricants) |
| Temperature Range |
-20°C to +150°C |
| Color |
Brown to dark brown (some grades contain MoS2 — black) |
| Storage |
Store in original sealed container at 0°C to 40°C. Protect from moisture, direct sunlight, and contamination. Keep containers closed when not in use. |
| Shelf Life |
36 months from date of manufacture under recommended storage conditions |
Note: Specifications are based on publicly available product data from Klüber Lubrication. Consult the official datasheet for the most current information.
Applications & Industries
Klüber Staburags NBU is specified for use in the following applications:
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Rolling and plain bearings in machine tools — Suitable due to the product's formulation characteristics and performance profile.
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rolling mills — Suitable due to the product's formulation characteristics and performance profile.
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calenders — Suitable due to the product's formulation characteristics and performance profile.
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electric motors — Suitable due to the product's formulation characteristics and performance profile.
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gear couplings — Suitable due to the product's formulation characteristics and performance profile.
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construction machinery bearings — Suitable due to the product's formulation characteristics and performance profile.
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mining equipment — Suitable due to the product's formulation characteristics and performance profile.
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heavy industrial gearboxes — Suitable due to the product's formulation characteristics and performance profile.
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kiln car bearings — Suitable due to the product's formulation characteristics and performance profile.
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conveyor rollers — Suitable due to the product's formulation characteristics and performance profile.
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crusher bearings — Suitable due to the product's formulation characteristics and performance profile.
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vibrating screen bearings — Suitable due to the product's formulation characteristics and performance profile.
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paper machine bearings — Suitable due to the product's formulation characteristics and performance profile.
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steel mill work roll bearings — Suitable due to the product's formulation characteristics and performance profile.
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cement plant equipment — Suitable due to the product's formulation characteristics and performance profile.
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marine deck equipment — Suitable due to the product's formulation characteristics and performance profile.
Advantages
- High load-carrying capacity suitable for heavy industrial applications
- Contains solid lubricants (MoS2 in some grades) for boundary lubrication
- Good water resistance for wet industrial environments
- Wide operating temperature range from -20°C to +150°C
- Excellent adhesion to metal surfaces prevents throw-off
- Barium complex thickener provides good mechanical stability
- Effective sealing action against contaminants
- Reduces wear in heavily loaded bearings
- Suitable for both rolling and plain bearings
- Good corrosion protection in aggressive industrial atmospheres
- Proven performance in steel mills and heavy industry worldwide
- Reduces maintenance frequency in hard-to-access bearings
- Effective in oscillating and vibrating applications
- Good pumpability in centralized lubrication systems (lower NLGI grades)
- Long service life reduces grease consumption and disposal costs
Limitations & Considerations
- Not suitable for high-speed precision spindle applications
- Maximum temperature limited to 150°C — not for extreme high-temperature use
- Barium complex thickener may not be compatible with all grease types
- Not food grade — do not use in food processing equipment
- Solid lubricant grades (MoS2) may cause discoloration of components
- Not recommended for miniature or instrument bearings
- May cause higher friction at low temperatures compared to synthetic greases
- Mineral oil base has limited oxidation stability at elevated temperatures
- Not suitable for applications requiring NSF H1 certification
- Relubrication may be difficult in sealed-for-life designs
Frequently Asked Questions
Q: What applications is Klüber Staburags NBU designed for?
Klüber Staburags NBU is engineered for Rolling and plain bearings in machine tools. The product is commonly specified in industries including Rolling and plain bearings in machine tools, rolling mills, calenders, electric motors, gear couplings and related industrial sectors where reliable lubrication is critical.
Q: What temperature range does it operate in?
The operating temperature range is -20°C to +150°C. Always verify the specific temperature requirements for your application against the product datasheet to ensure compatibility.
Q: Is Klüber Staburags NBU food grade?
No, Klüber Staburags NBU is not NSF H1 registered for food-grade applications. For food processing environments requiring NSF H1 certification, consider Klüberfood NH1 or Klubersynth UH1 product series.
Q: Can this product be mixed with other greases?
As a general engineering practice, mixing greases with different thickener types is not recommended. Incompatible thickeners can cause the grease to soften excessively or harden, potentially leading to lubrication failure. If switching from another product, it is best practice to thoroughly purge the old lubricant before applying the new one.
Q: How should this product be stored?
Store in original sealed container at 0°C to 40°C. Protect from moisture, direct sunlight, and contamination. Keep containers closed when not in use. The typical shelf life is 36 months from date of manufacture under recommended storage conditions from the date of manufacture under recommended storage conditions.
Sourcing & Technical Support
KOEED is an authorized KLÜBER Lubrication distributor. Klüber Staburags NBU is in stock with worldwide shipping available. Product datasheets and Material Safety Data Sheets (MSDS) are available on request.
For technical consultation, volume pricing, or to request a competitive quote, contact Moritta@KOEED.COM. Our technical support team typically responds within 24 hours. When requesting a quote, please include product specifications, required quantity, and shipping destination for fastest service.
