VARILUB NBU 15-300

VARILUB NBU 15/300 has been especially developed for highspeed rolling and plain bearings, e.g. tool and textile spindle bearings, threaded spindles, ball screws subject to high loads, chassis bearings. It can also be used as long-term grease for bearings in cableways and precision engineering, or for the lubrication of tooth flanks in precision gears (e.g. bevel gears in milling machines, electromechanical actuators for valves).
The lubricant is applied by brush, spatula, grease gun or cartridge. Owing to the many different elastomer and plastic compositions their compatibility has to be checked prior to series applications.
*The product can normally be applied by means of centralised lubricating systems. Please note, however, that due to different system configurations and application conditions the pumpability of the product has to be confirmed for each individual application. We will be pleased to provide assistance in this matter.

Savings in costs for bearings due to the good corrosion and wear protection as well as pressure absorption capacity of the grease, therefore long service life and maintenance intervals
Reduced wastewater disposal costs due to good water resistance resulting in a long service life and relubrication intervals
Trouble-free operation of machines due to easy pumpability and metering in central lubrication systems

Characteristics	VARILUB NBU 15/300
Article number	004190
Composition, thickener	barium complex soap
Composition, type of oil	ester oil , mineral oil , synthetic hydrocarbon oil
Colour space	beige
Texture	homogeneous
Service temperature, lower limit	-30 °C
Service temperature, upper limit	130 °C
Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, lower limit	300 0.1 mm
Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, upper limit	340 0.1 mm
Shear viscosity, Klüber method: PN 008@DIN 53019-1, equipment: rotational viscometer, 25°C, 300 s⁻¹, lower limit	2000 mPas
Shear viscosity, Klüber method: PN 008@DIN 53019-1, equipment: rotational viscometer, 25°C, 300 s⁻¹, upper limit	5000 mPas
Kinematic viscosity of the base oil, 40°C, calculated data	approx. 23 mm²/s
Copper corrosion, DIN 51811, 24 h, 120°C	1 - 120 - 24 corrosion degree
SKF-EMCOR, DIN 51802, Klüber method: distilled water, 168 h	≤ 1 corrosion degree
Dropping point, DIN ISO 2176 / IP 396	≥ 220 °C
Speed factor (n x dm)	approx. 1000000 mm/min
Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx	36 months

kluber-varilub-nbu-15-300.pdf

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