Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings 1

Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings 2

Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings 3

Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings 4

Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings

YBS-NB 52 Long‑Term Bearing Grease,‑50℃~120℃, Water & Corrosion Resistant for Automotive & Machinery

YBS-NB 52 is a premium synthetic long‑life lubricating grease for rolling and plain bearings from Klüber Lubrication. It adopts synthetic hydrocarbon base oil and special barium complex soap thickener, which features excellent load‑carrying capacity, remarkable resistance to water and various ambient media, together with reliable anti‑corrosion, oxidation and aging stability.

Model:

YBS-NB 52

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Performance characteristics

Superior water & media resistance: Unique barium‑complex soap thickener, stable performance under humid and water‑exposed conditions, greatly extend component service life

Excellent low‑temperature performance: Reliable fluidity at ‑50℃, ensures smooth startup for equipment operating in cold environments

Good load‑carrying & high‑speed adaptability: High speed factor n×dm up to 1,000,000 mm/min, adapts for high‑speed and moderate‑load working conditions

Outstanding anti‑corrosion & anti‑ageing: Good oxidation stability, effective corrosion protection verified by Emcor test, long service cycle, reduce maintenance frequency

Multi‑application compatibility: Works for rolling / plain bearings, precision gears, automotive adjustment mechanisms and weak‑current electrical contact points to reduce insertion force

Short‑fibre stable texture: Homogeneous beige grease, good mechanical stability, not easy to soften or leak under long‑time running

Performance characteristics

Item	Specification
Product Model	YBS-NB 52
Material No.	004131
Base Oil	Synthetic Hydrocarbon Oil
Thickener	Barium Complex Soap
NLGI Grade	2
Working Temperature Range	‑50 ℃ ~ +120 ℃；Short‑term peak up to 150℃ (closed system)
40℃ Kinematic Viscosity	approx.30.0 mm²/s
100℃ Kinematic Viscosity	approx.5.9 mm²/s
Appearance	Beige, homogeneous short‑fibre grease
Dropping Point(DIN ISO 2176)	≥240 ℃
Worked Penetration(DIN ISO 2137)	265‑295 (0.1 mm)
Speed factor n×dm	approx.1 000 000 mm/min
Density(20℃)	approx.0.96 g/cm³

The above data are typical values for the current product. The data for each batch of products in the future may fluctuate.

Application and Packaging Specifications

Automotive components: Automobile seat adjustment mechanisms, closed gear assemblies, vehicle auxiliary rotating parts, withstand short‑term peak temperature

Mechanical & precision transmission: High‑speed rolling & plain bearings, precision gear tooth surfaces, bevel gears, electromechanical valve actuators

Humid working‑condition equipment: Bearings exposed to moisture and aqueous media, requiring water‑resistant anti‑corrosion lubrication

Weak‑current electrical components: Partial electrical contact assemblies, reduce insertion force, only for low‑signal weak‑current scenarios

Automotive components

Humid working‑condition equipment

Mechanical & precision transmissio

Weak‑current electrical components

Equivalent Klüber ISOFLEX TOPAS NB 52 Synthetic Grease | High‑Speed Low‑Temperature Lubricant for Rolling & Plain Bearings 10

Operating Precautions

Fit for moderate‑load scenarios; Not suitable for heavy‑shock extreme heavy‑load operating conditions. Strictly control filling quantity. Excess grease will cause temperature rise, noise increase and shorten service life. Do not mix with other types of greases, mixing will damage barium‑complex soap structure and lose water‑resistant & anti‑corrosion performance. For plastics and elastomers, carry out small‑sample compatibility test before mass‑production application.

How To Use

■ Clean gears and remove old lubricant before application.
■ Apply grease evenly to gear teeth and contact surfaces.
■ Use an appropriate amount to ensure full coverage without excess.
■ Apply manually or through a lubrication system.
■ Run equipment at low speed after application to ensure proper distribution.

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