Print Back
  • Drive Circuit is simplified because the motor is driven with star winding connection
  • High torque is obtained at low speed with a mirco-step driver
  • Ultra-low vibration and low noise achieved with our micro-step driver
  • With these drivers, motor step angle is set by selecting from 1/1, 1/2, 1/4, or 1/8
Unit of Measure

Specifications

Type

KR Series, 3 phase Permanent Magnet (3.75 Degree/Step)

Product Type

Stepper Motor

Series

3 Phase KT

Motor Frame Size

NEMA 17

No. of Phases

3

Step Angle

3.75 deg./step

Voltage

3.5 V

Current per 2 Phase

2.5 A

Winding Resistance/2 Phase

1.4 Ω

Inductance/2 Phase

1.7 mH

Holding Torque

16.7 oz·in118 mN·m

Detent Torque

1.4 oz·in9.8 mN·m

Standard Size

42 x 48 mm1.65 x 1.89 in.

Rotor Inertia

57 g·cm²0.31 oz·in²

Weight

350 g0.77 lb

Insulation Class

Jis Class E (120ºC/248ºF) (UL Value : Class B 130ºC/266ºF)

Insulation Resistance (Motor Section)

500 VDC, 100 MO min.

Dielectric Strength

500 VAC, 50 HZ, 1 min.

Operating Temperature Range

0 to 50 ºC

Allowable Temperature Rise

70 ºK

Torque Curve


KR42KM4-551-ST-CURVE.jpg

Dimensions


a2084.jpg

Additional Information


a2085.jpg

a2489.jpg

a2490.jpg

a2506.jpg

Explanation of Dynamic Torque Curves

KR42EM4.jpg

KR42HM4-551-.jpg

KR42KM4-551-VIBRATION.jpg

Customize

N/A Custom Designs