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KLUBER ISOFLEX NCA 15 Sets Benchmark for High-Speed Spindle Bearing Performance

author: Rose
2025-06-28
KLUBER ISOFLEX NCA 15 Spindle bearing grease
Description:
ISOFLEX NCA 15 is a dynamically light grease with good pressure absorption properties for plain and rolling bearings. It consists of ester oil, synthetic hydrocarbon oil, mineral oil and special calcium soap. The product is resistant to water and protects reliably against wear.
Application:
ISOFLEX NCA 15 is particularly suitable for the lubrication of spindle and tapered roller bearings, threaded spindles, ball screws subject to high loads, and for all high-speed bearings, e.g. bearings in OE-spinning turbines used in the textile industry. It is also suitable for tooth flanks of precision gears (bevel gears in milling machines).
Application notes:
The lubricant is applied by brush, spatula, grease gun or grease cartridge. Owing to the different compositions of elastomers and plastic materials, compatibility tests are indispensable before series application.
Minimum shelf life:
The minimum shelf life is approx. 36 months if the product is stored in the original closed container in a dry place.
Feature:
Rolling bearing grease
For very high speeds
Good pressure absorption
Good resistance to water
Good wear protection
Resistant to oxidation and ageing
Product data: 
Colour
beige
Texture
homogeneous,
short-fibred
Density, at 20 °C, g/cm3 , approx.
0.94
Service temperature range*, °C, approx.
– 50 to 120
Drop point, DIN ISO 2176, °C
> 180
Worked penetration, DIN ISO 2137,
(ASTM D 217); 0.1 mm
265 to 295
Water resistance, DIN 51 807/1,
3 h / 90 °c, rating
0/1 – 90
Base oil viscosity, DIN 51 562/1,
at 40 °C, mm2 /s, approx.
at 100 °C, mm2 /s, approx.
23.0
4.7
Speed factor**
(n x dm), mm x min–1, approx.
1,300,000
Apparent dynamic viscosity***,
Klüber viscosity grade
L/M

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