Electric Motor Specifications

 
Below you will find technical data of electric motors from :

GRAUPNER - Motors

Speed-motors
Voltage range
Rev./min
unloaded
Current
unloaded - loaded
Efficiency
(L x Dia) 
Dimension
motor (mm)
(L x Dia)
Dimension
shaft (mm)
motor
Weight 
motor
Speed 280
4.5 - 6 V
14000
0.275 - 1.58 A
58.2%
30.5 x 28.8
11 x 2
42 g
Speed 300
1.2 - 6 V
29000
0.7 - 5 A
65 %
30.8 x 24.4
7 x 2
50 g
Speed 400 Race
1.2 - 6 V
22000
1 - 7 A
66%
37.8 x 27.7
13.8 x 2.3
73 g
Speed 400 - 6V
2.4 - 7.2 V
18000
0.7 - 4 A
70%
37.8 x 27.7
13.8 x 2.3
73 g
Speed 400 - 7.2V
3.6 - 8.4 V
16400
0.5 - 3.3 A
72%
37.8 x 27.7
13.8 x 2.3
73 g
Speed 480
7.2 - 9.6 V
17000
1.1 - 5 A
82%
47.3 x 29.3
14 x 3.17
105 g
Speed 500 - 7.2V
3.6 - 8.4 V
17600
1.5 - 9 A
66%
50 x 35.8
8.5 x 3.17
162 g
Speed 500 Race
3.6 - 8.4 V
21200
2 - 14 A
76%
50 x 35.8
8.5 x 3.17
164 g
Speed 500 BB
Race VS
4.8 - 8.4 V
24500
1.6 - 17 A
82%
50 x 35.8
12.5 x 3.17
166 g
Speed 500 BB
Buggy Race 2wd
4.8 - 8.4 V
34000
4.2 - 18 A
78%
52 x 36
11 x 3.17
174 g
Speed 500 - 8.4V
6 - 9.6 V
17000
1.2 - 9 A
69%
50 x 35.8
8.5 x 3.17
160 g
Speed 500 BB Race
7.2 - 9.6 V
20000
1.6 - 19 A
72%
64 x 38
8.5 x 3.17
233 g
Speed 500 E
6 - 12 V
12000
0.4 - 2 A
67%
50 x 35.8
8.5 x 3.17
158 g
Speed 500 SP
6 - 9.6 V
17000
1 - 7 A
78%
50 x 35.7
10.5 x 3.17
160 g
Speed 600 Eco
6 - 9.6 V
11000
1 - 7.5 A
72%
57 x 37
8.7 x 3.17
220 g
Speed 600 - 7.2V
3.6 - 8.4 V
18200
2 - 12 A
69%
57 x 35.8
8.7 x 3.17
195 g
Speed 600 BB - 7.2V
3.6 - 8.4 V
18800
1.8 - 12 A
72%
57 x 35.8
8.7 x 3.17
195 g
Speed 600 - 8.4V
4.8 - 9.6 V
15500
1.8 - 11 A
75%
57 x 37
8.7 x 3.17
220 g
Speed 600 BB - 8.4V
4.8 - 9.6 V
16000
1.8 - 11 A
77%
57 x 37
8.7 x 3.17
220 g
Speed 600 - 9.6V
7.2 - 10 V
14500
1 - 7 A
75%
57 x 35.8
8.7 x 3.17
195 g
Speed 600 BB - 9.6V
7.2 - 10 V
14900
0.9 - 7 A
77%
57 x 35.8
8.7 x 3.17
195 g
Speed 600 BB 
SP - 7.2V
6 - 9.6 V
21200
1.8 - 12.7 A
76%
57 x 35.7
11.9 x 3.17
194 g
Speed 600 BB 
SP - 8.4V
6 - 9.6 V
17000
1.2 - 9.5 A
76%
57 x 36
11.8 x 3.17
205 g
Speed 600 BB
SP - 9.6V
7.2 - 12 V
17000
0.8 - 6.6 A
75%
57 x 35.7
11.9 x 3.17
194 g
Speed 600 Race
8.4V
6 - 9.6 V
21000
12 A
76%
57 x 36
11.9 x 3.17
195 g
Speed 650 BB Race
7.2 - 14.4 V
19665
1.63 - 12.04 A
77%
65 x 38
9.3 x 3.17
258 g
Speed 360 PT
7.2 - 12 V
17200
0.9 - 8 A
77%
57 x 35.5
12 x 3.17
192 g
Speed 600 BB 
Turbo - 12V
4.8 - 14.4 V
17200
1 - 7 A
77%
57 x 37
8.7 x 3.17
220 g
Speed 600 BB 
Turbo - 14.4V
9.6 - 14.4 V
14500
0.9 - 5 A
74%
57 x 37
8.7 x 3.17
220 g
Speed 700 BB
Turbo - 8.4V
4.8 - 12 V
14700
2.5 - 15 A
72%
67 x 44
14 x 5
350 g
Speed 700 Turbo
4.8 - 14.4 V
15000
2 - 12.5 A
75%
67 x 42.2
14 x 5
320 g
Speed 700 BB
Turbo - 9.6V
4.8 - 16.8 V
13000
2 - 15 A
75%
67 x 42.2
14 x 5
350 g
Speed 700 BB
Turbo Neodym
7.2 - 19.2 V
15750
2.17 - 15.93 A
77%
66 x 45
14.5 x 5
353 g
Speed 700 BB
Race - 9.6V
7.2 - 9.6 V
19000
3.3 - 17.5 A
69%
66 x 44.5
10.5 x 5
362 g
Speed 700 BB
Turbo - 12V
7.2 - 19.2 V
11600
2 - 12.5 A
75%
67 x 44
14 x 5
350 g
Speed 720 BB
Torque
6 - 13 V
4100
0.75 - 3 A
75%
72 x 44.5
6.5 x 5
380 g
Speed 820 BB
Turbo Race
16 - 24 V
24000
2.5 - 21.3 A
82%
68 x 48
13 x 5
450 g
Speed 900 BB
Torque - 12V
6 - 40 V
6500
1.1 - 8 A
71 %
85 x 51.5
15 x 6
645 g
Speed 500 BB
Competition
4.8 - 8.4 V
25000
1.7 - 13 A
89 %
50 x 35.8
11 x 3.17
196 g
 
Speed Serie
BB
=
with ball bearings
Turbo
=
5 turn armature
Race
=
for race purposes (short period use)
ULTRA Brushless
BRUSHLESS
220 / Pylon
BRUSHLESS
220 / 20-3
BRUSHLESS
220 / 20-2 G 7.1
BRUSHLESS
300 / 30-3
Nominal Voltage
7 V
8 V
14 V
16 V
Voltage range
6 - 8 V
7 - 10 V
10 - 16 V
10 - 24 V
Rev./min. unloaded
38800 omw/min
12900 omw/min
8900 omw/min
9600 omw/min
Current, unloaded
Current, loaded efficiently
4 A
38 A
1.2 A
16 A
6.5 A
44 A
1.2 A
16 A
Efficiency
83%
85%
78%
88%
Dimension motor
49 x 36.5 mm
49 x 36.5 mm
75 x 36.5 mm
60 x 44 mm
Dimension shaft
17 x 5 mm
17 x 5 mm
17 x 6 mm
21 x 5 mm
Weight motor
180 g
175 g
235 g
295 g



The watercooled ULTRA 920- 6M with his big brother the ULTRA 3300 (for Heli use)
ULTRA
Motor
 
watercooled
Nominal 
Voltage
Voltage 
range
Rev./min 
unloaded
 
Current when 
loaded efficiently
Efficiency
(L x Dia)
Dimension
motor (mm)
 
(L x Dia)
Dimension 
shaft (mm)
 
motor 
Weight 
motor
900 M (out of production)
9.6 V
6 - 15 V
20000
17 A
72%
67 x 44 
20 x 5 
315 g
920-6M
10 V
8 - 14.4 V
27500
28 A
80%
62 x 44 
14 x 5 
235 g
920-8M
10 V
7 - 14.4 V
20040
22 A
82%
62 x 44 
14 x 5 
266 g
1300-9M
16 V
12 - 24 V
16000
27 A
81%
72 x 50
19 x 5 
418 g
1600 M (out of production)
16 V
12 - 24 V
16000
20 A
81%
78 x 52 
26 x 5 
420 g
1800 M Neodym 
(out of production)
18 V
16 - 24 V
13500
21 A
83%
90 x 52 
25 x 5 
570 g
3500-6M
28 V
20 - 30 V
12200
30 A
86%
100 x 70
27 x 5 
760 g

Mabuchi - Motors

Mabuchi
Nominal
Voltage
Voltage range
Rev./min. 
unloaded
Efficiency
(L x Dia)
Dimensions
motor (mm)
(L x Dia)
Dimensions 
shaft (mm)
Weight
RE 140
3 V
1.5 - 3 V
14150
42%
29 x 21 
10 x 2 
23 g
RE 280
4.5 V
1.5 - 4.5 V
12500
62%
34 x 24 
10 x 2 
48 g
RS 380
6 V
6 - 9.6 V
11000
62%
38 x 28 
13.8 x 2.3 
70 g
RS 540 S
6 V
6 - 9.6 V
14400
65%
50 x 36 
8 x 3.2 
145 g
RS 550 S
9 V
6 - 12 V
14400
67%
63 x 36 
8.7 x 3.2 
186 g
RS 540 SD
Race
6 V
4.8 - 7.2 V
19000
75%
50 x 36 
8 x 3.2 
145 g
RS 540 S
with gearbox
6 V
6 - 9.6 V
---
65%
98 x 40 
12 x 4 
195 g

MARX - Motors

PERM-series
Voltage
Power
Rev./min. 
unloaded
(L x Dia)
Dimensions
motor
Weight
Milliperm
6 V
1.2 W
10000 omw/min
32 X 21 mm
26 g
Milliperm
12 V
1.2 W
10000 omw/min
32 x 21 mm
26 g
Monoperm
6 V
4.0 W
9000 omw/min
40 x 30 mm
75 g
Monoperm
12 V
4.0 W
9000 omw/min
40 x 30 mm
75 g
Monoperm-Super
6 V
8.0 W
8000 omw/min
52 x 30 mm
120 g
Monoperm-Super
12 V
8.0 W
8000 omw/min
52 x 30 mm
120 g
Decaperm 1: 2.75
6 V
20.0 W
8250 omw/min
94 x 45 mm
250 g
Decaperm 1: 2.75
12 V
20.0 W
8250 omw/min
94 x 45 mm
250 g
Hectoperm 1: 2
6 V
30.0 W
6000 omw/min
120 x 55 mm
550 g
Hectoperm 1: 2
12 V
30.0 W
6000 omw/min
120 x 55 mm
550 g
GT-serie
 
Voltage
 
Power
Rev./min. unloaded
(L x Dia)
Dimensions
Weight
MARX GT-300/05
9.6 V
300 W
14000 omw/min
88 x 40 mm
340 g
MARX GT-300/07
12 V
300 W
14000 omw/min
88 x 40 mm
340 g
MARX GT-300/09
16.8 V
300 W
14000 omw/min
88 x 40 mm
340 g
MARX GT-300/10
19.2 V
300 W
14000 omw/min
88 x 40 mm
340 g
MARX GT-300/14
28 V
300 W
14000 omw/min
88 x 40 mm
340 g
MARX GT-500/05
8.4 V
500 W
11000 omw/min
100 X 56 mm
460g
MARX GT-500/07
12 V
500 W
11000 omw/min
100 X 56 mm
460g
MARX GT-500/11
24 V
500 W
11000 omw/min
100 X 56 mm
460g
MARX GT-500/16
33.6 V
500 W
11000 omw/min
100 X 56 mm
460 g

ROBBE - Motors

Power series Navy S 4,8V 400/35 400/45 PLUS 410/12 540S 500/21
Voltage range
 3 - 6 V
5 cellen		 7,2 V
6 cellen		 8,4 V
7 cellen		 12 - 14 V
12 cellen		 3,6 - 7,2 V
6 cellen		 7,2 V
6 cellen
Current when loaded efficiently
 1 A 4,5 A 4 A 8 A 6 A 14 A
Max. Current
 2 A 9 A 9 A 11 A 12 A 25 A
Efficiency
 70% 70% 67% 78% 73% 76%
Revolutions at nom.voltage 
and max.efficiency
 9300 omw/min 17000 omw/min 15000 omw/min 24000 omw/min 17000 omw/min 18400 omw/min
Length motor
 34 mm 38 mm 38 mm 60 mm 56 mm 50 mm
Diameter
 24 mm 28 mm 28 mm 30 mm 35 mm 36 mm
Weight 42 g 71 g 71 g 118 g 145 g 160 g


Power series 600/19 600/24 EF76/2 700/13T PLUS 710/12 1000
 
Voltage range
 7,2 - 8,4 V
6 - 7 cellen		 7,2 - 9,6 V
7 cellen		 7,2 - 9,6 V
7 cellen		 8,4 - 12 V
8 cellen		 12 - 16 V
12 cellen		 6 - 12 V
Current when loaded efficiently
 12 A 10 A 7 A 13 A 16 A 2,5 A
Max. Current
 25 A 25 A 20 A 25 A 25 A 10 A
Efficiency
 70% 74% 70% 75% 79% 70%
Revolutions at nom.voltage 
and max.efficiency
 16000 omw/min 14000 omw/min 11400 omw/min 12800 omw/min 15300 omw/min 2200 omw/min
bij 12 V
Length motor
 57 mm 57 mm 57 mm 67 mm 72 mm 96 mm
Diameter
 36 mm 38 mm 38 mm 44 mm 44,5 mm 63,5 mm
  Weight 195 g 220 g 210 g 320 g 360 g 1000 g



Watercooled PRO Navy motor specially for electric speedboats in the Mono and Hydro classes.
PRO Navy Series
PRO 325 Navy 7
PRO 330 Navy 12
PRO 330 Navy 20
Propeller Diameter
33 mm
36 mm
36 mm
Voltage range
6 - 8 V
7 NiCd cellen
10 - 14 V
12 NiCd cellen
16 -24 V
20 NiCd cellen
Current when loaded efficiently
27 A
27 A
26 A
Efficiency
77%
77%
77%
Revolutions per Volt
2100 omw/min
1600 omw/min
1000 omw/min
Length motor
67 mm
72 mm
72 mm
Diameter with watercooling
38 mm
48 mm
72 mm
  Weight
260 g
295 g
300 g

This list is only for your information only