nema stepper motor 57hs series and ND556

Model No.

phase

Step angle

Hold Torque

Rated current

Phase inductance

Phase resistance

Lead number

Rotor inertia

Positioning torque

Weight 

Body length

(°)

N.M

A

mH

Ohm

g.cm2

Kg.cm

Kg

mm

57HS06

2

1.8

0.6

2.0

1.8

1.4

8

146

0.42

0.6

55

57HS09

2

1.8

0.9

2.8

1.2

0.8

8

260

0.4

0.6

54

57HS22

2

1.8

2.2

4.0

1.8

0.8

8

460

0.7

1.1

81

instructions

unit

min

Typ

max

Output Current 

A

1.4

-

5.6

Input supply voltage

VDC

18

36

50

Control signal input current

mA

7

10

16

Step pulse frequency

KHz

0

-

400

Pulse low time

μs

1.2

Insulation resistance

MΩ

500