CHIHAI BL370-R Brushless Motor with Built-In Driver, 44000rpm Reference
CHIHAI BL370-R Brushless Motor with Built-In Driver, 44000rpm Reference
CHIHAI MOTOR
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The CHIHAI MOTOR BL370-R is a compact round brushless motor with an internal Hall driver and N50UH neodymium magnets. Its ribbed CNC aluminum-alloy housing measures 24mm in diameter. Choose the terminal, gear, round-shaft or lead-pair configuration that matches your installation.
Choose Your Configuration
| Configuration | Supplied configuration |
|---|---|
| Terminal Type - D Shaft 9.5mm | Terminal motor with 2mm D shaft, 9.5mm projection. |
| Steel-Cut Bevel Gear | Motor supplied with steel-cut bevel gear; verify gear fit. |
| MP9 Spur Gear | Motor supplied with MP9 spur gear; verify mating gear fit. |
| CW Round Shaft 6mm | CW version with round shaft, 6mm projection; overall reference 36.8mm. |
| CW Round Shaft 18.7mm | CW version with round shaft, 18.7mm projection; overall reference 49.5mm. |
| Motor + Terminal Lead Pair | Motor with one pair of plug-in terminal leads, 14cm, 22AWG (source cross-section 0.32mm²). |
Each option is one real source configuration. Gear styles and shaft lengths are alternatives; they are not all included together. Confirm dimensions and mating parts before purchase.
Motor Reference Specifications
| Parameter | Source reference |
|---|---|
| Motor type | BL370-R, brushless, built-in Hall driver |
| No-load speed reference | 44000rpm at 11.1V; 29000rpm at 7.4V |
| Housing | CNC aluminum alloy; 24mm diameter, 30.8mm can length |
| Standard D shaft | 2.0mm diameter, 1.5mm across flat; 9.5mm projection, 6.5mm flat length |
| Standard overall length | 42.4mm, D-shaft terminal reference |
| Front boss | 6.5mm diameter, 1.6mm projection |
| Rear boss | 6.3mm diameter; rear projection reference 2.1mm |
| Net motor mass | Approximately 52g, source reference |
11.1V Performance Reference
| Operating point | Speed | Torque | Current | Output power | Efficiency |
|---|---|---|---|---|---|
| No load | 44000rpm | — | 1.10A | — | — |
| Maximum efficiency | 38976rpm | 16.74mN·m | 8.53A | 68.3W | 72.1% |
| Maximum output power | 22000rpm | 73.28mN·m | 33.6A | 168.9W | 45.22% |
| Stall reference | 0rpm | 146.5mN·m | 66.1A | — | — |
These are distinct reference operating points from the source chart. Maximum output power is not a continuous-duty rating. Stall figures are limits for reference, not a permitted operating condition. Speed and load depend on supply and installation.
Power Connection and Operation
Never reverse the supply polarity. Match the + and − markings on the rear terminals. Reverse connection can damage the built-in driver. The internal driver handles brushless commutation, so an external three-phase commutation driver is not required. The CW round-shaft options are supplied as CW versions; do not attempt to reverse them by swapping power leads.
Use a suitable DC supply, wiring and protection for the load. Avoid overload, stalled operation, forcing the shaft and repeated rapid starts. Keep moving shafts and exposed terminals protected. Power supply, controller, mating gears and installation hardware are included only when explicitly named in the selected configuration.
Visual Details
