Description Klüber ISOFLEX NBU 15 is a proven high-speed spindle bearing grease with excellent pressure resistance and long-term stability. It is based on a blend of ester oil, synthetic hydrocarbon oil, and mineral oil, thickened with barium complex soap. Pack size: 400 g cartridge Also available in: 50 g tube, 400 g Lube Shuttle cartridge, 1 kg can, 25 kg bucket Applications Spindle bearings in machine tools and textile machinery High-speed plain bearings under load Precision gearboxes, ball screws, lead screws Bogie bearings and long-term lubrication in cable car systems Tooth flank lubrication in precision gears, e.g. bevel gears or electromechanical valve actuators Benefits for your application High-speed grease with excellent pressure resistance Extremely high speed rating (n·dm up to ~1,600,000) Excellent resistance to water, media and oxidation Superior corrosion protection (EMCOR ≤ 1) Low self-heating due to minimal friction Compatible with central lubrication systems – good pumpability Technical data Article number 0040260591 Colour Beige Texture Homogeneous, short fibrous Base oil Ester / synthetic hydrocarbon oil / mineral oil Thickener Barium complex Temperature range -40 °C to 130 °C Kinematic viscosity @40 °C / 100 °C approx. 21 mm²/s / 4.5 mm²/s Worked penetration (25 °C) 265-295 (0.1 mm) Dropping point ≥ 220 °C Density (20 °C) approx. 0.99 g/cm³ Speed factor (n·dm) approx. 1,600,000 mm/min Corrosion protection (EMCOR) ≤ 1 Shear viscosity (25 °C / 300 s⁻¹) 4000-8000 mPas Shelf life 36 months Application notes Apply with brush, spatula, cartridge or grease gun Check compatibility with elastomers and plastics before series use Recommended grease guns: Pressol manual lever grease gun, OKS 5500 Benefits for your application Extended relubrication intervals thanks to high thermal and mechanical stability Increased process reliability due to outstanding corrosion protection (EMCOR ≤ 1) Lower heat generation and energy loss due to low friction characteristics Longer bearing life under mixed friction conditions and high loads Excellent performance in high-speed spindle systems (n·dm up to approx. 1,600,000) Versatile use in both precision mechanics and central lubrication systems Kluber ISOFLEX NBU-15, Klueber ISOFLEX NBU15 Hazard Information (CLP) Signal word: Warning Hazard statements (H-phrases) H302 H332: Harmful if swallowed or inhaled. Precautionary statements (P-phrases) Prevention: P264: Wash skin thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. Response: P301 P312 P330: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P304 P340 P312: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. Hazard-determining component(s) for labeling Barium salts Information on product safety (Manufacturer, Contact) KLÜBER LUBRICATION MÜNCHEN GMBH & CO. KG, Geisenhausenerstraße 7, 81379 München, GERMANY, 49 89 7876 0, [email protected], www.klueber.com


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