Product overview
The T-MOTOR U7 Power Type UAV Motor KV490 is a propulsion component for multirotor integration, including DSLR-lifting and professional photography quadcopter or hexacopter builds. The supplied package contains one U7 motor and one hardware pack. Its Φ60.7×39.5mm body, 6mm shaft and 750mm cables define the main installation dimensions and wiring reach. Cable gauge is 16# AWG, and the recommended matching propeller is the T-MOTOR CF20*6. Motor weight is 258g excluding cables and 299g including them.
The KV490 motor uses a 12N14P configuration with 21mΩ internal resistance and supports 3-8S LiPo batteries. Idle current is 1.1A at 10V; maximum continuous current is 44A for 180S, with maximum continuous power specified as 500W. Six upward-bevelled side holes provide airflow and water- and sand-resistant features. Internal construction includes precision winding, 0.2mm silicon steel sheets and an oxygen-free copper coil with a 180C material tolerance. A special screw secures the stator and rotor, while bearing service life exceeds 1600 hours under trouble-free operation.
Specifications
| Specification | Value & conditions |
|---|---|
| KV | 490KV490 configuration. |
| Motor configuration | 12N14PKV490 configuration. |
| Internal resistance | 21mΩKV490 configuration. |
| Motor dimensions | Φ60.7×39.5mmKV490 configuration. |
| Shaft diameter | 6mmKV490 configuration. |
| Cable length | 750mmKV490 configuration. |
| Wire gauge | 16# AWGKV490 configuration. |
| Motor weight | 258gKV490 configuration; excluding cables. |
| Motor weight | 299gKV490 configuration; including cables. |
| Idle current | 1.1AKV490 configuration; at 10V. |
| Battery cell count | 3-8SKV490 configuration; LiPo battery. |
| Maximum continuous current | 44AKV490 configuration; 180S. |
| Maximum continuous power | 500WKV490 configuration. |
| Side-hole architecture | Six upward-bevelled holes with waterproof and sand-resistant features. |
| Cooling | Side holes promote airflow; cooling is described as 2.5 times faster than others. |
| Stator and rotor retention | Special screw used for stator and rotor installation to avoid circlip loosening. |
| Coil temperature tolerance | 180COxygen-free copper coil. |
| Winding construction | Precision winding provides tight coil-to-slot fit. |
| Silicon steel sheet thickness | 0.2mm |
| Bearing service life | Over 1600 hoursTrouble-free operation. |
| MTBF | 1600hours |
| Included equipment | 1 × T-MOTOR U7 motor; 1 × hardware packSupplied package. |
| Recommended propeller | T-MOTOR CF20*6 |
| Intended integration | Motor for DSLR-lifting and professional photography quadcopter or hexacopter builds. |
| Application areas | Aerial photography, filming, delivery service and agriculture. |
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