Description
Klüberquiet BQ 74-73 N is a low-noise rolling bearing grease based on polyurea, specifically designed for high-speed applications. It is formulated for ball bearings in electric motors, fans, air conditioners, spindles, and precision drives, offering long service life even in vertical mounting positions and at elevated temperatures.
- Pack size: 1 kg can
- Also available in: 370 g cartridge, 25 kg pail
Applications
- Spindle and motor spindle bearings in machine tools, electrical appliances, and office/home devices
- Rolling bearings in electric motors, fans, HVAC systems, belt tensioners
- Bearings with vertical shaft position or rotating outer ring
Features
- Extremely low noise – verified by SKF BeQuiet+ testing
- Long service life even at operating temperatures up to 160 °C
- Excellent low-temperature performance down to -40 °C
- Superior corrosion protection (passed EMCOR test)
- High film stability – no melting or bleeding
- Suitable for high speeds (n·dm value approx. 2 million mm/min)
Technical Data
| Manufacturer no | 940980037 |
| Service temperature range | -40 °C to +160 °C |
| Consistency (worked penetration) | 220-250 (0.1 mm) |
| Base oil viscosity (40 °C / 100 °C) | approx. 60 mm²/s / 9.5 mm²/s |
| Drop point | ≥ 250 °C |
| Corrosion protection (EMCOR, distilled water) | ≤ 1 |
| Corrosion protection (EMCOR, 5% NaCl) | ≤ 3 |
| Low-temp torque at -40 °C | Running: ≤ 100 mNm / Starting: ≤ 1000 mNm |
| ROF bearing life test (160 °C) | ≥ 1500 h |
| Speed factor (n·dm) | approx. 2,000,000 mm/min |
| Water resistance (DIN 51807-1) | ≤ 1-90 |
Hazard Information (CLP)

Signal word: Danger.
Hazard Statements (H-phrases)
- H411: Toxic to aquatic life with long lasting effects.
Precautionary Statements (P-phrases)
Prevention:
- P273: Avoid release to the environment.
Response:
- P391: Collect spillage.
Klüber Klüberquiet BQ 74-73N
KLÜBER LUBRICATION MÜNCHEN GMBH & CO. KG, Geisenhausenerstraße 7, 81379 München, GERMANY, +49 89 7876 0, [email protected], www.klueber.com






Alberto –
Exactly what I needed. Very fast shipping. Fast shipping, great service. Feels durable and well built.
Maximilian –
Top product, top price. Very fast shipping.
Stella D. –
I noticed the difference right away! I was skeptical, but now I order regularly. Better than anything I’ve tried so far.
Aria V. –
Not too big, not too small, perfect. Packaging slightly damaged, but the product is excellent. A friend recommended it; I’m very happy with the purchase.
Tyler –
Satisfied with the quality. Arrived on time.
Guillaume –
Well packaged and delivered quickly. Excellent workmanship. Very good build quality. Great purchase, thank you.
amelie75 –
Very satisfied, it’s even better than I expected. A friend recommended it; I’m very happy with the purchase. Looks even nicer in real life. Feels nice to use at home.
ella.bloom –
Not too big, not too small, perfect. Pleasant to use at home.
Giulio N. –
Good fit and quality. Solid product, would buy again.