254*89mm radiator cooling fan 25489 for automobile cooling system

1. frame size: 254X89mm
2. bearing system type:  two ball bearing
3.frame:Aluminum
4.impeller:thermoplastic PBT UL 94V-0
5. rated voltage: 12V/24V/48V
6. rated speed: 1000/2000/2500/3500/4000RPM
7. maxiam air flow: 305.3-1296.43CFM
8. maxiam pressure: 11.80-42.1mmH2O
9. maxiam noise: 53.4-89.6dBA
10. function: FG/RD/PWM
11. safety approvals: CE,TUV,UL