Kluber Isoflex NBU 15 High Speed Bearing Grease 400g Cartridge

Description

Product Overview

The Kluber Isoflex NBU 15 is a premium high‑speed bearing grease formulated to meet the rigorous demands of modern industrial machinery. Packaged in a 400 g cartridge, it delivers a precise amount of lubricant while minimizing waste and simplifying application. The grease is based on a high‑performance synthetic base oil combined with advanced thickeners that provide a stable, low‑shear consistency even under extreme rotational speeds.

One of the core strengths of Isoflex NBU 15 is its ability to maintain a low coefficient of friction, which directly translates into reduced heat generation within bearings. Lower operating temperatures not only improve efficiency but also extend the service life of both the grease and the bearing components. This characteristic is especially valuable in applications where speed and load are continuously high, such as in centrifugal compressors, high‑speed gearboxes, and turbine drives.

Water resistance is another critical attribute of this formulation. The grease incorporates a carefully balanced blend of anti‑corrosive additives that create a protective film on metal surfaces, preventing moisture ingress and the associated risk of rust or pitting. This makes Isoflex NBU 15 suitable for environments with high humidity, occasional splashing, or exposure to condensate.

In addition to its functional benefits, the product complies with a range of industry standards for safety and environmental performance. It is free from hazardous heavy metals and meets the requirements of REACH and RoHS directives, ensuring that it can be used in regulated sectors without compromising compliance.

Technical specifications include a product dimension of 10 × 2 × 2 inches and a net weight of 14.11 ounces. The grease has been on the market since March 2014 and has earned a solid reputation reflected in a 4.4‑star rating from 38 verified customer reviews. Its best‑seller rank of #15 in Mechanical Lubricants & Oils underscores its popularity among professionals seeking reliable high‑speed lubrication solutions.

Overall, the Kluber Isoflex NBU 15 high‑speed bearing grease offers a balanced combination of low friction, excellent water resistance, and robust anti‑corrosion protection, making it a versatile choice for a wide range of industrial applications.

Usage

This grease is ideally suited for high‑speed rotating equipment where maintaining low temperature and preventing wear are paramount. Typical use cases include electric motor bearings, high‑speed spindle bearings, and precision gear sets found in CNC machines, printing presses, and aerospace components. Its stable consistency ensures that the lubricant stays in place even under centrifugal forces generated at speeds exceeding 10,000 rpm.

When applying Isoflex NBU 15, the cartridge’s built‑in nozzle allows for controlled dispensing directly into bearing housings, reducing the risk of over‑lubrication. For larger bearings, the grease can be introduced using a grease gun equipped with a compatible 400 g cartridge, ensuring uniform coverage across the entire bearing surface.

Environmental conditions play a significant role in lubricant performance. Isoflex NBU 15 excels in humid or wet environments, making it a reliable choice for machinery operating near cooling water lines, in marine settings, or in facilities with high ambient moisture. Its resistance to wash‑out means that maintenance intervals can be extended, lowering overall operational costs.

For applications involving intermittent operation or frequent start‑stop cycles, the grease’s quick film‑formation capability provides immediate protection, reducing the wear that typically occurs during start‑up phases. This attribute is valuable in equipment such as robotic arms, conveyor systems, and packaging machinery that experience variable loading patterns.

Proper storage of the cartridge is essential to preserve its performance characteristics. Keep the product in a cool, dry place away from direct sunlight and extreme temperature fluctuations. Once opened, seal the cartridge tightly after each use to prevent contamination and moisture ingress.

Why Choose Us

Choosing Kluber as your lubricant supplier means partnering with a brand that has over a century of experience in tribology and lubrication technology. The company’s commitment to research and development ensures that each product, including Isoflex NBU 15, benefits from the latest advancements in synthetic base oils and additive chemistry.

Quality assurance is embedded in every step of the manufacturing process. From raw material selection to final packaging, the grease undergoes rigorous testing for viscosity, load‑carrying capacity, and thermal stability. These tests are performed in accredited laboratories and conform to ISO 9001 standards, guaranteeing consistent performance batch after batch.

Customer support extends beyond the point of sale. Kluber provides technical assistance through a network of regional experts who can help with product selection, application guidelines, and troubleshooting. Whether you need advice on the correct grease amount or recommendations for complementary products, the support team is readily available.

In addition to technical support, Kluber offers comprehensive documentation, including safety data sheets, material safety data sheets, and detailed application notes. These resources empower engineers and maintenance personnel to make informed decisions and maintain compliance with occupational health and safety regulations.

Finally, the company’s sustainability initiatives reflect a commitment to reducing environmental impact. Isoflex NBU 15 is formulated to be biodegradable where possible, and the packaging is designed for recyclability, aligning with the growing demand for greener industrial solutions.

Key Features

• Low‑friction formulation reduces heat buildup, extending bearing life and improving energy efficiency.
• Superior water resistance protects against corrosion in humid or wet operating conditions.
• Stable high‑speed performance maintains consistency even at rotational speeds above 10,000 rpm.
• Convenient 400 g cartridge enables precise, mess‑free application and minimizes waste.
• Dedicated technical support and detailed documentation ensure successful implementation and ongoing reliability.

FAQ

What types of bearings are best suited for Isoflex NBU 15?

Isofex NBU 15 is optimized for high‑speed ball and roller bearings used in electric motors, gearboxes, and spindle assemblies. Its low‑shear properties make it ideal for bearings that operate at speeds exceeding 5,000 rpm, while the water‑resistant additives protect bearings exposed to moisture or condensate.

Can I use this grease in food‑processing equipment?

While Isoflex NBU 15 offers excellent performance in many industrial settings, it is not classified as a food‑grade lubricant. For applications that require direct contact with food products, a grease that meets FDA or NSF H1/H2 standards should be selected. However, Isoflex NBU 15 can be safely used in auxiliary components of food‑processing machinery that are not in direct contact with consumables.

How often should I re‑apply the grease?

Re‑application intervals depend on operating conditions such as load, speed, temperature, and environmental exposure. In typical high‑speed industrial applications with moderate loads, re‑greasing every 12‑18 months is common. For more demanding environments—such as those with high humidity or frequent start‑stop cycles—checking the grease condition quarterly and re‑applying as needed will ensure optimal protection.

Is the grease compatible with other lubricants?

Isofex NBU 15 can be mixed with other Kluber greases of similar base oil composition without compromising performance. Mixing with dissimilar lubricants, especially mineral‑oil‑based greases, may lead to incompatibility issues such as reduced load capacity or increased wear. When in doubt, consult Kluber’s technical support for compatibility guidance.

What safety precautions should I observe when handling the cartridge?

Although the grease is non‑hazardous, it is advisable to wear disposable gloves to prevent skin contact and avoid inhaling any aerosolized particles during dispensing. Store the cartridge in a cool, dry place, keep it out of reach of children, and follow the instructions on the safety data sheet for proper disposal at the end of its life.