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Features:
  • Improved Dynamic Torque (1.2 times torque of our previous model is generated at 300 r/min, on model : KH42JM2-901)
  • Lowered Vibration & Noise Level (by increased stiffness of body construction)
  • Improved Efficiency (1.1 times of our previous model, by high grade materials.)
  • Strong torque and quieter running by a unique tooth profile.
  • Extended applicable range by standardized specification & higher speed.
Unit of Measure

Specifications

Type

42mm, 2-Phase Stepping Motors (1.8 Degree/Step) - Nema 17

Rotor Inertia

0.3 oz·in²

Product Type

Stepper Motor

Series

2 Phase Square KH

Motor Frame Size

NEMA 17

Motor Size

42

Motor Length

1.65 in42 mm

Shaft Specification

Single Shaft

Step Angle

1.8 deg./step

Voltage per Phase

3.74 V

Current per Phase

1.1 A

Resistance per Phase

3.4 Ω

Inductance per Phase

4.0 mH

Shaft Length

0.95 in24 mm

Holding Torque

42 oz·in300 mN·m

Detent Torque

2.5 oz·in18 mN·m

Rotor Inertia

59 B·cm²0.3 oz·in²

Winding Method

Unipolar

Max. Temperature Rise (By resistance method)

70 ºK

Insulation Class

Class E equivalent

Insulation Resistance

100 MO min. at 500 V DC (at normal temp. & humidity, between lead and case)

Dielectric Strength

500 VAC, 50 Hz for 1 minute (at normal temp. & humidity, between lead and case)

Ambient Temperature Range

-10 ~ +50 ºC

Storage Temperature Range

-20 ~ +70 ºC

Humidity Range in Operation and Storage

5 ~ 95 % RH (noncondensing)

Options Available

Lead wire Assembly (Part# KH42LUS300)

Torque Curve


KH4242.jpg

Dimensions


Semi Standard Model Dimensions

Additional Information


a1127.jpg

Max. Allowable Load/Runout for Motor Shaft

Customize

N/A Custom Designs