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Klüber Klüberquiet BQR 78-102
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Klüber Klüberquiet BQR 78-102
Low-noise rolling bearing grease for long-term lubrication
Application Klüber Klüberquiet BQR 78-102
Klüberquiet BQR 78-102 is primarily used to lubricate sealed ball bearings in electric motors, fans or similar applications in cars, where they have to offer a long service life at aboveaverage permanent temperatures while preventing noise generation.
Performance, Features & Benefits of Klüber Klüberquiet BQR 78-102 are:
- Very good low-noise characteristics due to optimised raw materials and production processes
- Especially for lifetime lubrication of sealed rolling bearings
- Excellent compatibility with elastomers due to new product design
If you have any questions, please contact OilOnline Technical Helpdesk
Product Description Klüber Klüberquiet BQR 78-102
Rolling bearings in electric motors or fans in cars are expected to offer full performance throughout their service life without generating unwanted noise. The right lubricant can make a substantial contribution to meeting this taxing requirement. Klüberquiet BQR 78-102 was developed as a low-noise grease for rolling bearings. Raw materials were especially selected to attain the lowest noise classes on standard noise test rigs. Another challenge in many applications is the need to be compatible with elastomers that are used at elevated operating temperatures, especially ACM and FKM. For this reason we made this a major aspect of the product's design so that you can enjoy a unique combination of low-noise operation and a long service life at high operating temperatures. With these features, Klüberquiet BQR 78-102 offers you a particularly wide range of applications.
Typical Characteristics
| Product specifications : | Klüber Klüberquiet BQR 78-102 | |
| Article number | 094137 | |
| Chemical composition, type of oil | ether oil | |
| Chemical composition, thickener | polyurea | |
| Lower service temperature | -40 °C / -40 °F | |
| Upper service temperature | 180 °C / 356 °F | |
| Colour space | beige | |
| Density at 20 °C | approx. 0.90 g/cm³ | |
| Worked penetration, 25 °C, lower limit value | DIN ISO 2137 | 250 x 0.1 mm |
| Worked penetration, 25 °C, upper limit value | DIN ISO 2137 | 280 x 0.1 mm |
| Worked penetration, 25 °C, difference after 100,000 double strokes | DIN ISO 2137 | approx. 70 x 0.1 mm |
| Kinematic viscosity of the base oil, 40 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 100 mm²/s |
| Kinematic viscosity of the base oil, 100 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 12.5 mm²/s |
| Corrosion inhibiting properties of lubricating greases, (SKF-EMCOR), test duration: 1 week, distilled water |
DIN 51802 | <= 1 corrosion degree |
| Low-temperature torque, -40 °C, start | IP 186 | <= 250 mNm |
| Low-temperature torque, -40 °C, running |
IP 186 |
<= 100 mNm |
| Drop point, | DIN ISO 2176, IP 396 | >= 250 °C |
| Noise test run, SKF BeQuiet+, noise classes | >= GN3 | |
| Speed factor (n x dm) | 1 000 000 mm/min | |
| Testing of lubricating greases on FAG FE9 rolling bearing tester, speed: 6000 min-1, axial load: 1500 N, temperature: 180 °C, service life F50: |
DIN 51821 pt. 02 | > 100 h |
| Noise test run: anderometer according KL-PN 035 | <= 2/2 | |
| Water resistance, 3 h/90 °C, rating | DIN 51807 pt. 01 | <= 1 - 90 |
| Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx |
12 months |
Application notes
Klübersynth BQR 78-102 may be applied by brush, spatula, grease gun or grease cartridge. We recommend testing the pumpability of Klüberquiet BQR 78-102 in automatic lubrication systems prior to use. A typical characteristic of some polyurea greases is solidification after prolonged storage. This increase in consistency does not normally affect the grease's performance and can be reversed by shearing or churning.
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