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| specifications | |||||||
| Model No | Voltage(V) | Current (A) | Power(W) | Speed (RPM) | Max Air Flow CFM | Max Pressure (mm-H2O) | Noise (dBA) |
| 614NHHR | 24 | 125mA | 3 | 5000 | 24 | 3.2 | 36 |




| ball bearing | sleeve bearing | |
| Picture | ![]() | ![]() |
| Price | higher | lower |
| Brand | NSK from Japan | Made in China |
| Advantage | stable performance, low noise, 5-8 years lifetime | low cost, 2-3 years lifetime |
| Material | stainless | coppper sleeve |
| Warranty | 3 years | 1 years |

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