Item # KR42JM4-552, KR Series, 3 phase Permanent Magnet (3.75 Degree/Step)

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 | Torque Curve | Dimensions | Additional Information | Customize

Type	N/A KR Series, 3 phase Permanent Magnet (3.75 Degree/Step)
Motor Frame Size	N/A 42 x 42 mm1.65 x 1.65 in
No. of Phases	N/A 3
Product Type	N/A Stepper Motor
Series	N/A 3 Phase KT
Motor Frame Size	N/A NEMA 17
Step Angle	N/A 3.75 deg./step
Voltage per Phase	N/A 5.2 V
Current per Phase	N/A 1.2 A
Resistance per Phase	N/A 4.3 Ω
Inductance per Phase	N/A 8.7 mH
Holding Torque	N/A 12.5 oz·in98.1 mN·m
Detent Torque	N/A 1.4 oz·in9.8 mN·m
Rotor Inertia	N/A 0.25 oz·in²
Insulation Class	N/A Jis Class E (120ºC/248ºF) (UL Value : Class B 130ºC/266ºF)
Insulation Resistance	N/A 500 VDC, 100 MO min.
Dielectric Strength	N/A 500 VAC, 50 HZ, 1 min.
Ambient Temperature Range	N/A 0 to 50 ºC
Weight	N/A 240 g0.53 lb
Allowable Temperature Range	N/A 70 ºK