1320 Micro Brushless Motor Series, 13mm Coreless DC, 6V–24V Options
1320 Micro Brushless Motor Technical Data
The 1320 micro brushless motor series uses a 13 mm motor body and is available in 6 V, 7.4 V and 24 V configurations. The data below separates operating-point performance from electrical constants and mechanical integration data.
| Performance Parameter | KC-LF1320-001 | KC-LF1320-002 | KC-LF1320-003 |
|---|---|---|---|
| Rated Voltage | 6.0 V DC | 7.4 V DC | 24.0 V DC |
| No-Load Speed | 12,400 rpm | 18,600 rpm | 16,800 rpm |
| No-Load Current | 30 mA | 40 mA | 8 mA |
| Nominal Speed | 11,160 rpm | 16,833 rpm | 15,204 rpm |
| Nominal Current | 0.18 A | 0.30 A | 0.07 A |
| Nominal Torque | 0.67 mN·m | 0.96 mN·m | 0.88 mN·m |
| Nominal Efficiency | 73.3% | 77.2% | 79.7% |
| Nominal Output Power | 0.8 W | 1.7 W | 1.4 W |
| Maximum Efficiency | 73.7% | 77.3% | 79.7% |
| Maximum-Efficiency Speed | 11,718 rpm | 17,577 rpm | 15,876 rpm |
| Maximum-Efficiency Current | 0.11 A | 0.19 A | 0.05 A |
| Maximum-Efficiency Torque | 0.37 mN·m | 0.56 mN·m | 0.51 mN·m |
| Maximum-Efficiency Output Power | 0.4 W | 1.0 W | 0.8 W |
| Maximum Output Power | 2.2 W | 4.9 W | 4.1 W |
| Maximum-Power Speed | 6,200 rpm | 9,300 rpm | 8,400 rpm |
| Maximum-Power Current | 0.77 A | 1.39 A | 0.35 A |
| Maximum-Power Torque | 3.33 mN·m | 5.06 mN·m | 4.64 mN·m |
| Maximum-Power Efficiency | 47.1% | 47.9% | 48.3% |
| Stall Current | 1.50 A | 2.74 A | 0.70 A |
| Stall Torque | 6.66 mN·m | 10.11 mN·m | 9.27 mN·m |
Electrical Constants, Dimensions And Configuration
Electrical constants support drive-system calculations, while the dimensional data defines the mechanical envelope for integrating the micro brushless dc motor into an OEM assembly.
| Specification | KC-LF1320-001 | KC-LF1320-002 | KC-LF1320-003 / Series |
|---|---|---|---|
| Terminal Resistance | 4.00 Ω | 2.70 Ω | 34.50 Ω |
| Terminal Inductance | 0.00 mH | 0.12 mH | 0.12 mH |
| Torque Constant | 4.53 mN·m/A | 3.74 mN·m/A | 13.48 mN·m/A |
| Speed Constant | 2,066.67 rpm/V | 2,513.51 rpm/V | 700.00 rpm/V |
| Speed/Torque Constant | 1,862.85 rpm/mN·m | 1,839.61 rpm/mN·m | 1,811.72 rpm/mN·m |
| Mechanical Time Constant | 3.00 ms | 2.96 ms | 2.92 ms |
| Rotor Inertia | 0.15 g·cm² | 0.15 g·cm² | 0.15 g·cm² |
| Motor Outer Diameter | Ø13 mm | ||
| Front Pilot Diameter | Ø8.40 ± 0.05 mm | ||
| Front Feature Diameter | Ø6 mm, +0 / −0.05 mm | ||
| Mounting Holes | 2-M2 | ||
| Shaft Diameter | Ø1 mm | ||
| Motor Body Length | 20.20 mm | ||
| Front Reference Length | 21.20 mm | ||
| Overall Length | 24.20 mm to shaft end | ||
| Protection Level | IP54 | ||
| Optional Configurations | Ball bearing, double-shaft motor, encoder, reduction gearbox, solenoid brake and multi-polar magnet | ||
| Additional 24 V No-Load Current | ≤ 30 mA, unassigned source specification | ||
| Additional 24 V No-Load Speed | 23,000 ± 10% rpm, unassigned source specification | ||
| Additional 24 V Load Current | ≤ 200 mA, unassigned source specification | ||
| Additional 24 V Load Speed | 21,000 ± 10% rpm, unassigned source specification | ||
| Additional 24 V Starting Torque | 80 gf·cm, unassigned source specification | ||
1320 Micro Brushless Motor Dimensions
The drawing defines the 13 mm housing, Ø1 mm shaft, front pilot and 2-M2 mounting interface used for mechanical integration.
1320 Series Performance Advantages
Voltage Selection
6 V, 7.4 V and 24 V windings provide different speed, current and torque characteristics for system-level matching.
13 mm Mechanical Envelope
The Ø13 mm body and Ø1 mm shaft support integration where available radial space is limited.
Defined Operating Points
No-load, nominal, maximum-efficiency, maximum-power and stall data allow engineers to compare operating regions instead of selecting only by rated voltage.
Configurable Mechanical System
Selected projects can be evaluated with encoder, gearbox, double-shaft, bearing, brake or multi-polar magnet configurations.
Payment
- Quotation Confirmation: Payment details are confirmed in the formal quotation or proforma invoice according to the motor configuration and project requirements.
- Custom Project Terms: Projects involving customized shafts, windings, encoders, gearboxes or other modifications are reviewed before commercial terms are finalized.
- Currency And Banking Details: Applicable payment information is provided with the official sales documentation for the specific order.
Shipping
- Shipping Method: The transport method is selected according to shipment size, destination, project schedule and customer requirements.
- Production And Dispatch: The applicable production and shipping schedule is confirmed after the motor specification, quantity and customization requirements are finalized.
- Packaging: Packaging requirements can be reviewed for samples, engineering validation units and production orders.
1320 Micro Brushless Motor FAQ
What Voltage Options Are Listed For The LF1320 Series?
The supplied performance data includes KC-LF1320-001 at 6 V DC, KC-LF1320-002 at 7.4 V DC and KC-LF1320-003 at 24 V DC.
What Is The Mechanical Size Of The 1320 Series?
The supplied drawing shows a Ø13 mm motor body, Ø1 mm shaft, 20.20 mm body length and 24.20 mm overall length to the shaft end.
How Should Engineers Choose Between The 6 V, 7.4 V And 24 V Versions?
Selection should be based on the available supply voltage and the required speed, torque, current and operating point. The three windings have different motor constants and should not be treated as electrically interchangeable.
Can The Motor Be Supplied With An Encoder Or Gearbox?
Encoder and reduction gearbox configurations are listed among the available options. Suitability depends on the required output speed, torque, installation space and feedback requirements.
Can A Double-Shaft Or Brake Configuration Be Evaluated?
Yes. Double-shaft and solenoid brake configurations are listed as optional variants and should be confirmed against the required mechanical interface and operating conditions.
Does The Additional 24 V Specification Belong To KC-LF1320-003?
Not confirmed. The separate source data lists 24 V, 23,000 ± 10% rpm no-load speed and other performance values without a model number, so it should remain unassigned until the corresponding model is verified.
