AUB0524VHD 5020 50mm 5CM DC 24V 0.15A the Server inverter PC Case Cooling fan for Delta

Type: Server Fan
Model Number: AUB0524VHD
Origin: Mainland China

Parameters:
Model: AUB0524VHD
Size: 50 * 50 * 20mm
Bearing: ball bearing
Standard voltage: 24v
Current: 0.15A
Cable length: 8 cm
Maintain the best operating time life of 80, 000
hours: 8.0000 hours (25°, environmental relative humidity 45~85%)
Fan frame: injection molding, glass fiber + VO PBT + 30% flame retardant grade
Blade: injection molding, glass fiber + VO PBT + 30% grade flame retardant
Fan rotation direction: from the direction of the fan blades to counterclockwise
Working temperature: -10°C to +70°C
Storage temperature: -40 degrees Celsius to +70 degrees Celsius
Bearing: High precision ball bearing
Power range: plus or minus 15% of rated power
Insulation resistance: above 500mohm
Withstand voltage: sink leakage current 0.5 mA 500V / 1 minute
Service life: 80, 000 hours when the ambient temperature is 25 degrees
Double ball bearing (2 Ball Bearing) is a high-grade bearing, which takes the form of rolling friction. It uses two ball bearings. The bearing is surrounded by several small steel balls on the shaft. When the fan page or the rotating shaft rotates, the steel ball is Rotate. Because it is a sphere, there is less friction and no oil leakage problems. The double ball bearing has a long service life, with a service life of about 50, 000-100, 000 hours; good anti-aging properties, suitable for transfer v high-speed fans. The disadvantage of double ball bearings is the high manufacturing cost and maximum noise level at the same RPM. Double ball bearings of wind and hydraulic bearings are better, especially double ball bearings. The double ball bearing is integrally embedded in the fan, and the moving parts are not in direct contact with the outside world. In a sealed environment, the working environment is relatively stable.
With maintenance-ball bearings, it has dual functions, long service life, and sufficient cooling air flow and air pressure.