Brushless Motors

4 Pole Neodymium Magnets
Frame / Mounting
Stack
Peak Stall
Torque
oz-in
Cont. Stall
Torque
oz-in
Rotor
Inertia
oz-in-sec2
Friction
Torque
oz-in
Thermal
Resistance
oC/Watt
Power
Watts
Weight
lb
Max
RPM
B23
NEMA 23
120
40
0.0008
3.5
1.5
100
1.1
6000
240
80
0.0015
4.4
1.0
180
1.8
6000
342
114
0.0023
5.3
0.9
240
2.6
6000
432
144
0.0030
6.6
0.8
300
3.3
6000
B34
NEMA 34
750
250
0.0088
10.5
0.52
300
5.8
6000
1060
380
0.0126
13.8
0.51
500
7.4
6000
1350
450
0.0132
17.0
0.49
700
9.0
6000
1650
590
0.0220
20.0
0.48
900
10.6
6000
Magmotor Selection Guide
8 Pole Neodymium Magnets
Frame / Mounting
Stack
Peak Stall
Torque
oz-in
Cont. Stall
Torque
oz-in
Rotor
Inertia
oz-in-sec2
Friction
Torque
oz-in
Thermal
Resistance
oC/Watt
Power
Watts
Weight
lb
Max
RPM
BFA23
NEMA 23
175
60
0.001
4.2
2.5
130
1.4
7000
360
115
0.002
5.3
2
240
2.4
7000
540
170
0.003
6.6
1.5
340
3.4
7000
690
230
0.004
8
1.1
440
4.3
7000
BFA34
NEMA 34
810
270
0.0088
10.5
0.52
325
5.8
6000
1130
380
0.0138
13.8
0.51
540
7.4
6000
1460
490
0.0126
17
0.49
760
9
6000
1780
600
0.022
20
0.48
970
10.6
6000
BFA42
NEMA 42
1950
650
0.041
22
0.35
1200
9.7
6000
2700
900
0.062
31
0.31
1700
12.8
6000
3600
1200
0.082
40
0.28
2000
16
6000
4000
1400
0.102
49
0.24
2400
19.1
6000
4800
1600
0.124
0
0.2
2800
24.2
6000
Magmotor Selection Guide

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