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klubersynth ra 44

for noise reduction and mechanical damping.

Klübersynth RA 44-702, RA 44-1502, RA 44-3500 and RA 44-3502 are fully synthetic special greases of high viscosity providing haptic and acoustic damping to your components for a better touch-feel. This enables you to provide mechanical damping to slow-moving components and hence reduce noises, e.g. inside cars.

Klübersynth RA 44-702, RA 44-1502, RA 44-3500 and RA 44-3502 are preferably used for plastic/plastic and plastic/metal material pairings. These products enable you to set defined shifting forces and compensate for tolerances. All products of the Klübersynth RA series have a wide service temperature range from –40 °C to 130 °C (Klübersynth RA 44-702 even offers down to –50 °C). When applied to enclosed systems such as car seat backrest fittings, short-term peaks of up to 180 °C can be tolerated, e.g. in drying ovens.

Applications in motor cars:
mechanical switches and rotary controls, ventilation flaps, sun visors, ashtrays, cup holders, storage boxes, window lifter guide rails, armrest and seat adjustment mechanisms (vertical and horizontal), sunroofs, etc.

Further applications:
precision engineering and optical instruments, fasteners, household appliances and white goods, office machinery and computers, pneumatics and O-rings, sports equipment.

Compatibility with elastomers:
Klübersynth RA 44-702, RA 44-3500 and RA 44-3502 were especially developed for the lubrication of plastic parts inside cars. For this reason, comprehensive tests were performed according to DIN EN ISO 22088 (stress cracking). The results show that these greases are neutral to most plastic materials. Owing to the many different plastic compositions, we recommend checking the material's compatibility with the grease prior to series application.

These products can be applied by means of grease gun, brush or spatula as well as via automatic lubricating systems. Klübersynth RA 44-702 and RA 44-3502 contain a UV indicator for easy quality inspection of minimum quantity lubrication. The UV check can be made with a wavelength of 366 nm.

  • Soft feel effect (haptics)
  • Noise reduction
  • Good compatibility with plastics
  • Low oil separation
Characteristics Klübersynth RA 44-702 Klübersynth RA 44-1502 Klübersynth RA 44-3500 Klübersynth RA 44-3502
Article number  012264 012263 012311 012262
Composition, thickener lithium soap lithium soap lithium soap lithium soap
Composition, type of oil  synthetic hydrocarbon oil synthetic hydrocarbon oil synthetic hydrocarbon oil synthetic hydrocarbon oil
Colour space beige beige beige beige
Service temperature, lower limit  -50 °C -40 °C -40 °C -40 °C
Service temperature, upper limit 130 °C 130 °C 130 °C 130 °C
Density, Klüber method: PN 024, 20°C  approx. 0.87 g/cm³ approx. 0.87 g/cm³ approx. 0.85 g/cm³ approx. 0.87 g/cm³
Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, lower limit 265 0.1 mm 285 0.1 mm 340 0.1 mm 275 0.1 mm
Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, upper limit 295 0.1 mm 315 0.1 mm 370 0.1 mm 305 0.1 mm
Shear viscosity, Klüber method: PN 008@DIN 53019- 1, equipment: rotational viscometer, 25°C, 300 s⁻¹, lower limit 6000 mPas 8000 mPas 12000 mPas 16000 mPas
Shear viscosity, Klüber method: PN 008@DIN 53019- 1, equipment: rotational viscometer, 25°C, 300 s⁻¹, upper limit 12000 mPas 15000 mPas 18000 mPas 23000 mPas
Kinematic viscosity of the base oil, DIN EN ISO 3104 / DIN 51562-1 / ASTM D445 / ASTM D7042, 40°C approx. 720 mm²/s approx.1500 mm²/s approx. 3500 mm²/s approx. 3500 mm²/s
SKF-EMCOR, DIN 51802, Klüber method: distilled water, 168 h ≤ 1 corrosion degree ≤ 1 corrosion degree  - ≤ 1 corrosion degree
Oil separation, DIN 51817 N, 168 h, 40°C ≤ 3 by weight % ≤ 3 by weight % ≤ 5 by weight % ≤ 3 by weight %
Flow pressure, DIN 51805-2, -40°C  - ≤ 1400 mbar ≤ 1400 mbar ≤ 1400 mbar
Flow pressure, DIN 51805-2, -50°C ≤ 1400 mbar  -  -  -
Low temperature torque, IP 186, -40°C, running torque approx.  140 mNm  -  - approx.  290 mNm
Low temperature torque, IP 186, -40°C, starting torque approx. 150 mNm  -  - approx.  150 mNm
Dropping point, DIN ISO 2176 / IP 396 ≥ 180 °C ≥ 180 °C ≥ 180 °C ≥ 180 °C
Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. 36 months 24 months 24 months 36 months