20H NEMA8 2Phase 1.8°
nema 8 stepper motor

20H NEMA8 2Phase 1.8°

Features of NEMA 8 2Phase stepper motor are small size, high smoothness and small inertia.
Product Detail

Technical Parameter

Item

Specifications

Step Angle Accuracy

±5% (full step, no load)

Resistance Accuracy

±10%

Inductance Accuracy

±20%

Temperature Rise

80°C MAX.(rated current,2 phase on)

Ambient Temperature

-10°C~+50°C

Insulation Resistance

100MΩMin.@ 500VDC

Dielectric Strength

one minute @ 500VAC·5mA

Shaft Radial Play

0.06Max. @ 450g

Shaft Axial Play

0.08Max. @ 450g


Technical Specification

Model No.

Polar

Rated Voltage

Current/Phase

Resistance/Phase

Inductance/Phase

Holding Torque

#Of leads

Rotor Inertia

Weight

Length

V

A

Ω

mH

oz-in

kg·cm

g·cm²

kg

mm

20H024H-0204

Bipolar

4.4

0.2

22

6

1.4

0.1

4

1.8

0.04

24

20H028H-0204

4.8

0.2

24

8

1.8

0.13

2.5

0.05

28

20H033H-0604

3.6

0.6

6

2.2

2.5

0.18

2.9

0.07

33

20H038H-0604

6

0.6

10

5.5

5.6

0.4

3.3

0.08

38

20H045H-0604

7.2

0.6

12

6.8

6.1

0.44

3.8

0.1

45

20H048H-0604

8.1

0.6

13.5

7.2

6.7

0.48

4

0.11

48

Features of 20H NEMA8 2Phase 1.8°

Small size, high smoothness, small inertia


Related Names

Small Sized High Torque Step Motor for Science Instrument | Optical Instrument Used Two Phase Stepping Motor | Hybrid Stepper Motor for Medical Scanning Device


Application for 20H NEMA8 2Phase 1.8°

Scientific instrument industry: Optical instrument

Medical industry: Scanning equipment

Communication equipment industry: Mobile Satellite TV


Stepper Motor Application

Stepper motors are generally used in a variety of applications where precise position control is desirable and the cost or complexity of a feedback control system is unwarranted. Here are a few applications where stepper motors are often found:


Printers


CNC machines


3D printer/prototyping machines (e.g. RepRap)


Laser cutters


Pick and place machines


Linear actuators

Hard drives

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