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Klüber Klüberspeed BF 72-23
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Klüber Klüberspeed BF 72-23
High-speed lubricating grease
Application Klüber Klüberspeed BF 72-23
Klüberspeed BF 72-23 is primarily recommended for spindles in milling, grinding and drilling machines and lathes running at very high speeds and high permanent temperatures. Such high speeds are frequently encountered in motor-powered spindle bearings. Klüberspeed BF 72-23 is also suitable for other highspeed bearings as are found in power tools, electric motors, etc. As this grease has a higher mechanical stability than Klüberspeed BF 72-22, it is better suitable for applications involving a vertical or inclined shaft.
Performance, Features & Benefits of Klüber Klüberspeed BF 72-23 are:
- Especially for horizontal, vertical or inclined mounting positions, thus suitable for all standard machine tools. Excellent high-speed characteristics and long service life in rolling bearings with steel/steel or steel/ceramic friction pairings
If you have any questions, please contact OilOnline Technical Helpdesk
Product Description Klüber Klüberspeed BF 72-23
Klüberspeed BF 72-23 is a high-performance special grease with a synthetic base oil and a complex urea thickener. The base oil viscosity and the viscosity-temperature characteristics of the base oil allow Klüberspeed BF 72-23 to be used for a wide range of speeds and temperatures.
Typical Characteristics
| Product specifications : | Klüber Klüberspeed BF 72-23 | |
| Article number | 004246 | |
| Chemical composition, thickener | polyurea | |
| Chemical composition, type of oil | ester oil | |
| Chemical composition, type of oil | synthetic hydrocarbon oil | |
| Lower service temperature | -50 °C / -58 °F | |
| Upper service temperature | 120 °C / 248 °F | |
| Colour space | beige-brown | |
| Texture | homogeneous | |
| Texture | fibrous | |
| Density at 20 °C | approx. 0.92 g/cm³ | |
| Worked penetration, 25 °C, lower limit value | DIN ISO 2137 | 220 x 0.1 mm |
| Worked penetration, 25 °C, upper limit value | DIN ISO 2137 | 250 x 0.1 mm |
| Kinematic viscosity of the base oil, 40 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 22 mm²/s |
| Kinematic viscosity of the base oil, 100 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 5 mm²/s |
| Speed factor (n x dm) |
|
approx. 2 100 000 mm/min |
| Shear viscosity at 25 °C, shear rate 300 s-1, equipment: rotational viscometer, lower limit value | 2 000 mPas | |
| Shear viscosity at 25°C, shear rate 300 s-1, equipment:rotational viscometer, upper limit value | 6 000 mPas | |
| Corrosion inhibiting properties of lubricating greases, (SKF-EMCOR), test duration: 1 week, distilled water |
DIN 51802 | <= 1 corrosion degree |
| Flow pressure of lubricating greases, test temperature: -50 °C | DIN 51805-2 | <= 1 400 mbar |
| Klüber spindle bearing test- HC7010E, F ax=100 N, n=32500 rpm, F 50 | >= 1 200 h | |
| Oil separation, after 7 d/40 °C | DIN 51817 N | <= 3 % by weight |
| 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 |
36 months |
Application notes
Klüberspeed BF 72-23 can be filled into the bearings using normal grease application tools (e.g. spatula, grease gun). Application by means of central lubricating systems and metering devices is also possible. The possibility of a change in colour is inherent in this product concept. It has, however, no influence on product performance.
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