50*50*20mm 5000RPM for Delta AUB0524VHD cooling fan 2 wire/3 wire DC24V 0.15A

Model AUB0524VHD
Size 50*50*20mm
Bearing double ball bearing
Standard voltage 24V
Current 0.15A
Power: 3.6W
Speed: 5000RPM
Air volume: 11.8CFM
Line head: 2 line/3 line (see the image below)
Keep the best running time for 80000 hours: 8 hours (25 C, 45 ~ 85% relative humidity)
Fan frame: injection molding once, PBT + 30% glass fiber + VO flame retardant;
Wind blade: injection molding once, PBT + 30% glass fiber + VO flame retardant;
The fan is swirling from the fan blade direction to the counter clockwise;
Operating temperature: -10 degrees Celsius to 70 degrees celsius;
Storage temperature: -40 degrees Celsius to 70 degrees celsius;
Bearing: high precision ball bearing;
Power range: the positive and negative 15% of the rated power;
Insulation resistance: more than 500 MEG;
Voltage resistance: leakage current of 0.5mA 500V / 1 minutes;
Working life: 80000 hours when ambient temperature is 25 degrees
Double ball bearings (2 Ball Bearing) belong to the more high-grade bearings. In the form of rolling friction, two ball bearings are used. There are several tiny steel balls around the axle center in the bearing. When the fan page or axis rotates, the steel ball will follow. Because they are all spheres, so the friction force is smaller, and there is no problem of oil leakage. The advantages of double ball bearings are long life, about 50000-100000 hours, good aging resistance and suitable for high V speed fans. The drawback of double ball bearings is that the manufacturing costs are high and the noise is maximum at the same speed level. The double ball bearing and the hydraulic bearing are well closed, especially the double ball bearings. The double ball bearing is embedded in the fan, and the rotating part has no direct contact with the outside world. In the sealed environment, the working environment of the bearing is more stable.

package:

fan*1