No load speed

N(0)

rpm

25000

27000

36800

No load current

I(0)

mA

70

220

82

Nominal speed

N(N)

rpm

16500

20500

29800

Nominal torque

T(N)

mN.m

1.5

1.86

1.3

Nominal current

I(N)

A

0.75

0.71

0.66

Stall torque

T(S)

mN.m

4.45

9

6.85

Stall current

I(S)

A

2.07

3.06

3.1

Max. efficiency

η

%

66.8

76

70

Terminal resistance

phase to phase

R(t-h))

Ω

2.89

2.42

2.9

Terminal inductance

phase to phase 

L(t-h)

mH

0.19

0.18

0.19

Torque constant

K(T)

mN.m/A

2.22

2.63

2.27

Speed constant

K(n)

rpm/V

4310

3648

4210

Speed/torque gradient

K(▽)

rpm/mN.m  

rpm/mN.m  

3342

5376

Mechanical time constant

K(m)

ms

10

9.2

9.6

Rotor inertia

J

gcm2

0.17

0.19

0.17