Overview
The EMAX Pro Series PRO-2814 brushless motor is offered in 730KV and 830KV variants for 3–6S setups. It features a 12N14P framework, 4mm bearing shaft, and M5 threaded shaft, with 4× M3 mounting holes on a Ø19mm pattern.
Key Features
- PRO-2814 series brushless motor with 730KV or 830KV options
- 3–6S support (spec-rated)
- 12N14P framework
- 4mm bearing shaft, M5 shaft thread
- 4× M3 mounting holes, Ø19mm mounting pattern
- 18AWG motor leads
Specifications
Mechanical / Drawing Dimensions
| Model marking |
PRO-2814 |
| Motor diameter |
Ø33.2 |
| Motor length (drawing) |
46.45 |
| Additional dimension (drawing) |
39.55 |
| Additional dimension (drawing) |
17.5 |
| Shaft thread |
M5 |
| Mounting |
4-M3 |
| Mounting pattern |
Ø19 |
| Wire |
18AWG |
| Wire length (drawing) |
270 |
PRO-2814 730KV
| KV |
730 |
| Motor Dimensions |
Φ33.2×46.45mm |
| Framework |
12N14P |
| Bearing Shaft |
4mm |
| Lead |
18#AWG 250mm |
| Weight |
79.5g (W/O Silicone Wire) |
| Idle Current (10V) |
1.0A |
| Internal Resistance |
78mΩ |
| No. of cells |
3–6S |
| Propeller |
9"–10" |
| Peak Current (6S) |
48A |
| Max. Power (6S) |
1209W |
PRO-2814 830KV
| KV |
830 |
| Motor Dimensions |
Φ33.2×46.45mm |
| Framework |
12N14P |
| Bearing Shaft |
4mm |
| Lead |
18#AWG 250mm |
| Weight |
79.5g (W/O Silicone Wire) |
| Idle Current (10V) |
1.2A |
| Internal Resistance |
62mΩ |
| No. of cells |
3–6S |
| Propeller |
9"–10" |
| Peak Current (6S) |
63A |
| Max. Power (6S) |
1587W |
Performance Data (25.2V)
PRO-2814-730KV — AVIA9045 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
1.8 |
290 |
45.36 |
6.39 |
4860 |
| 25.2 |
3.62 |
540 |
91.22 |
5.92 |
6290 |
| 25.2 |
6.42 |
840 |
161.78 |
5.19 |
7703 |
| 25.2 |
10.2 |
1180 |
257.04 |
4.59 |
9030 |
| 25.2 |
15.1 |
1550 |
380.52 |
4.07 |
10300 |
| 25.2 |
21.1 |
1930 |
531.72 |
3.63 |
11440 |
| 25.2 |
28.1 |
2310 |
708.12 |
3.26 |
12490 |
| 25.2 |
37 |
2760 |
932.40 |
2.96 |
Max |
PRO-2814-730KV — HQ 9050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
1.75 |
280 |
44.10 |
6.35 |
4880 |
| 25.2 |
3.6 |
520 |
90.72 |
5.73 |
6280 |
| 25.2 |
6.54 |
840 |
164.81 |
5.10 |
7670 |
| 25.2 |
10.5 |
1200 |
264.60 |
4.54 |
8960 |
| 25.2 |
15.7 |
1600 |
395.64 |
4.04 |
10190 |
| 25.2 |
22.1 |
2010 |
556.92 |
3.61 |
11290 |
| 25.2 |
29.5 |
2420 |
743.40 |
3.26 |
12290 |
| 25.2 |
39 |
2930 |
982.80 |
2.98 |
Max |
PRO-2814-730KV — AVIA1050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.18 |
370 |
54.94 |
6.74 |
4650 |
| 25.2 |
4.63 |
680 |
116.68 |
5.83 |
6040 |
| 25.2 |
8.25 |
1090 |
207.90 |
5.24 |
7340 |
| 25.2 |
13.1 |
1510 |
327.60 |
4.61 |
8520 |
| 25.2 |
19.1 |
1960 |
481.32 |
4.07 |
9630 |
| 25.2 |
26.5 |
2380 |
667.80 |
3.56 |
10620 |
| 25.2 |
35 |
2800 |
882.00 |
3.17 |
11500 |
| 25.2 |
46.6 |
3460 |
1174.32 |
2.95 |
Max |
PRO-2814-730KV — Gemfan1050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
1.96 |
320 |
49.39 |
6.48 |
4760 |
| 25.2 |
4.12 |
640 |
103.82 |
6.16 |
6160 |
| 25.2 |
7.44 |
1030 |
187.49 |
5.49 |
7500 |
| 25.2 |
11.8 |
1450 |
297.36 |
4.88 |
8720 |
| 25.2 |
17.5 |
1900 |
441.00 |
4.31 |
9890 |
| 25.2 |
24.5 |
2350 |
617.40 |
3.81 |
10890 |
| 25.2 |
32.6 |
2810 |
821.52 |
3.42 |
11800 |
| 25.2 |
43.4 |
3400 |
1093.68 |
3.11 |
Max |
PRO-2814-730KV — HQ 1050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.13 |
360 |
53.68 |
6.71 |
4660 |
| 25.2 |
4.62 |
690 |
116.42 |
5.93 |
6040 |
| 25.2 |
8.33 |
1070 |
209.92 |
5.10 |
7310 |
| 25.2 |
13.1 |
1490 |
330.12 |
4.51 |
8470 |
| 25.2 |
19.3 |
1940 |
486.36 |
3.99 |
9560 |
| 25.2 |
26.6 |
2380 |
670.32 |
3.55 |
10540 |
| 25.2 |
35.2 |
2820 |
887.04 |
3.18 |
11370 |
| 25.2 |
47.4 |
3450 |
1194.48 |
2.89 |
Max |
PRO-2814-830KV — AVIA9045 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.52 |
390 |
63.50 |
6.14 |
5430 |
| 25.2 |
5.12 |
690 |
129.02 |
5.35 |
7020 |
| 25.2 |
8.95 |
1050 |
225.54 |
4.66 |
8530 |
| 25.2 |
14.3 |
1460 |
360.36 |
4.05 |
10100 |
| 25.2 |
20.8 |
1900 |
524.16 |
3.62 |
11330 |
| 25.2 |
28.6 |
2300 |
720.72 |
3.19 |
12470 |
| 25.2 |
37.8 |
2710 |
952.56 |
2.84 |
13560 |
| 25.2 |
50.4 |
3250 |
1270.08 |
2.56 |
Max |
PRO-2814-830KV — Gemfan9045 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.2 |
280 |
55.44 |
5.05 |
5590 |
| 25.2 |
4.37 |
560 |
110.12 |
5.09 |
7190 |
| 25.2 |
7.73 |
940 |
194.80 |
4.83 |
8760 |
| 25.2 |
12.4 |
1350 |
312.48 |
4.32 |
10290 |
| 25.2 |
18.3 |
1750 |
461.16 |
3.79 |
11630 |
| 25.2 |
25.4 |
2180 |
640.08 |
3.41 |
12910 |
| 25.2 |
34.1 |
2650 |
859.32 |
3.08 |
14100 |
| 25.2 |
44.8 |
3190 |
1128.96 |
2.83 |
Max |
PRO-2814-830KV — HQ9050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.49 |
380 |
62.75 |
6.06 |
5440 |
| 25.2 |
5.13 |
700 |
129.28 |
5.41 |
7010 |
| 25.2 |
9.16 |
1080 |
230.83 |
4.68 |
8470 |
| 25.2 |
14.8 |
1520 |
372.96 |
4.08 |
9880 |
| 25.2 |
21.7 |
1970 |
546.84 |
3.60 |
11150 |
| 25.2 |
30.1 |
2410 |
758.52 |
3.18 |
12250 |
| 25.2 |
39.8 |
2880 |
1002.96 |
2.87 |
13270 |
| 25.2 |
52.7 |
3460 |
1328.04 |
2.61 |
Max |
PRO-2814-830KV — AVIA1050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
3.1 |
490 |
78.12 |
6.27 |
5190 |
| 25.2 |
6.53 |
880 |
164.56 |
5.35 |
6710 |
| 25.2 |
11.4 |
1340 |
287.28 |
4.66 |
8050 |
| 25.2 |
17.8 |
1830 |
448.56 |
4.08 |
9320 |
| 25.2 |
26.2 |
2330 |
660.24 |
3.53 |
10450 |
| 25.2 |
36 |
2800 |
907.20 |
3.09 |
11380 |
| 25.2 |
46.7 |
3300 |
1176.84 |
2.80 |
12230 |
| 25.2 |
62.4 |
4020 |
1572.48 |
2.56 |
Max |
PRO-2814-830KV — Gemfan1050 3-blade propeller
| The voltage (V) |
current (A) |
thrust (G) |
power (W) |
efficiency (G/W) |
speed (RPM) |
| 25.2 |
2.77 |
460 |
69.80 |
6.59 |
5290 |
| 25.2 |
5.82 |
860 |
146.66 |
5.86 |
6850 |
| 25.2 |
10.2 |
1300 |
257.04 |
5.06 |
8250 |
| 25.2 |
16.5 |
1810 |
415.80 |
4.35 |
9590 |
| 25.2 |
24.2 |
2330 |
609.84 |
3.82 |
10770 |
| 25.2 |
33.4 |
2840 |
841.68 |
3.37 |
11760 |
| 25.2 |
44 |
3320 |
1108.80 |
2.99 |
12690 |
| 25.2 |
58.9 |
3980 |
1484.28 |
2.68 |
Max |
For motor selection, setup, and compatibility questions (KV choice, prop range, and 3–6S matching), contact [email protected] or visit https://rcdrone.top/.
Applications
- RC multirotor and UAV power systems (3–6S)
- Custom RC builds requiring 2814-size brushless motors
Details
Fitment details are easy to confirm with the PRO-2814 mechanical drawing, including motor diameter, overall length, shaft thread, and mounting pattern.
Performance data for the 730KV version compares thrust, current draw, RPM, and efficiency across several 3-blade prop options at 25.2V.
