Japanese Products Corp. - 3 Phase Stepping Motors

Unit of Measure

Items	KR42HM4-551 KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17 Request Quote	KR42HM4-552 KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17 Request Quote	KR42JM4-551 KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17 Request Quote	KR42JM4-552 KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17 Request Quote	KR42KM4-551 KR Series, 3 phase Permanent Magnet (3.75 Degree/Step) - Nema 17 Request Quote
Type	N/A KR Series, 3 phase Permanent Magnet (3.75 Degree/Step)
Product Type	N/A Stepper Motor
Series	N/A 3 Phase KT
Motor Frame Size	N/A NEMA 17
Shaft Type	N/A
No. of Phases	N/A 3
Step Angle	N/A 3.75 deg./step
Voltage	N/A 2.8 V	N/A 4.40 V	N/A 3.5 V	N/A 5.2 V	N/A 3.5 V
Current per 2 Phase	N/A 2.0 A	N/A 1.3 A	N/A 2.0 A	N/A 1.2 A	N/A 2.5 A
Winding Resistance/2 Phase	N/A 1.4 Ω	N/A 3.4 Ω	N/A 1.75 Ω	N/A 4.3 Ω	N/A 1.4 Ω
Inductance/2 Phase	N/A 1.7 mH	N/A 4.0 mH	N/A 2.1 mH	N/A 8.7 mH	N/A 1.7 mH
Holding Torque	N/A 8.3 oz·in58.9 mN·m	N/A 8.3 oz·in58.9 mN·m	N/A 12.5 oz·in98.1 mN·m	N/A 12.5 oz·in98.1 mN·m	N/A 16.7 oz·in118 mN·m
Detent Torque	N/A 0.8 oz·in5.9 mN·m	N/A 0.8 oz·in5.9 mN·m	N/A 1.4 oz·in9.8 mN·m	N/A 1.4 oz·in9.8 mN·m	N/A 1.4 oz·in9.8 mN·m
Standard Size	N/A 42 x 34 mm1.65 x 1.34 in.	N/A 42 x 34 mm1.65 x 1.34 in.	N/A 42 x 40 mm1.65 x 1.58 in.	N/A 42 x 40 mm1.65 x 1.58 in.	N/A 42 x 48 mm1.65 x 1.89 in.
Rotor Inertia	N/A 31 g·cm²0.17 oz·in²	N/A 31 g·cm²0.17 oz·in²	N/A 45 g·cm²0.25 oz·in²	N/A 45 g·cm²0.25 oz·in²	N/A 57 g·cm²0.31 oz·in²
Drive Method	N/A
Weight	N/A 210 g0.46 lb	N/A 210 g0.46 lb	N/A 240 g0.53 lb	N/A 240 g0.53 lb	N/A 350 g0.77 lb
Insulation Class	N/A Jis Class E (120ºC/248ºF) (UL Value : Class B 130ºC/266ºF)
Insulation Resistance (Motor Section)	N/A 500 VDC, 100 MO min.
Dielectric Strength	N/A 500 VAC, 50 HZ, 1 min.
Operating Temperature Range	N/A 0 to 50 ºC
Allowable Temperature Rise	N/A 70 ºK
Torque Curves	N/A KR42HM4-551-ST-CURVE.jpg	N/A KR42HM4-552-ST-CURVE.jpg	N/A KR42JM4-551-ST-CURVE.jpg	N/A KR42JM4-552-ST-CURVE.jpg	N/A KR42KM4-551-ST-CURVE.jpg
Dimensions	N/A a2080.jpg	N/A a2080.jpg	N/A a2082.jpg	N/A a2082.jpg	N/A a2084.jpg
Additional Information	N/A a2081.jpg a2489.jpg a2490.jpg a2506.jpg Explanation of Dynamic Torque Curves KR42EM4.jpg KR42HM4-551-.jpg KR42HM4-551-VIBRATION.jpg	N/A a2081.jpg a2489.jpg a2490.jpg a2506.jpg Explanation of Dynamic Torque Curves KR42EM4.jpg KR42HM4-551-.jpg KR42HM4-552-VIBRATION.jpg	N/A a2081.jpg a2489.jpg a2490.jpg a2506.jpg Explanation of Dynamic Torque Curves KR42EM4.jpg KR42HM4-551-.jpg KR42JM4-551-VIBRATION.jpg	N/A a2081.jpg a2489.jpg a2490.jpg a2506.jpg Explanation of Dynamic Torque Curves KR42EM4.jpg KR42HM4-551-.jpg KR42JM4-552-VIBRATION.jpg	N/A a2085.jpg a2489.jpg a2490.jpg a2506.jpg Explanation of Dynamic Torque Curves KR42EM4.jpg KR42HM4-551-.jpg KR42KM4-551-VIBRATION.jpg
Min. High Level Input Voltage (Vih)	N/A
Max. High Level Input Voltage (Vih)	N/A
Min. Low Level Input Voltage (Vil)	N/A
Max. Low Level Input Voltage (Vil)	N/A
Min. Rise Time (Tr)	N/A
Max. Rise Time (Tr)	N/A
Max. Fall Time (Tf)	N/A
Min. Input Pulse Range (Twl)	N/A
Min. Direction of Rotation Change Timing (Twh)	N/A
Power Supply	N/A
Min. Low Label Maintenance (Tw)	N/A
Min. High Label Maintenance (Twh)	N/A
Customize	N/A Custom Designs