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Oriental Motor offers a wide range of motion control products to meet a wide range of applications, select the appropriate application type below.

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3.35 in. (85 mm)/3.54 in. (90 mm) RKII Series 5-Phase Stepper Motors (AC Input)
RKII Series 5-Phase Stepper Motors (AC Input)
The RKII Series Stepper Motors are designed to provide high performance and energy savings. To achieve constant maximum torque output with lower heat generation and save energy, the motor losses have been substantially reduced allowing them to be operated for longer hours at high speed which is not possible with conventional stepper motors. For use with RKII Series AC Input Drivers.
- 3.35 in. (85 mm)/3.54 in. (90 mm) Frame Sizes
- 5-Phase, New Pentagon (0.72°)
- Single or Double Shaft
- Geared Types Available
- Encoder Types Available
- Electromagnetic Brake Types Available
Unit of Measure
Items |
![]() PKE596AC 3.35 in. (85 mm) 5-Phase Stepper Motor (AC Input) Web Price $140.00
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![]() PKE599AC 3.35 in. (85 mm) 5-Phase Stepper Motor (AC Input) Web Price $180.00
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![]() PKE5913AC 3.35 in. (85 mm) 5-Phase Stepper Motor (AC Input) Web Price $223.00
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![]() PKE596AC-HS50 3.54 in. (90 mm) 5-Phase Geared Stepper Motor (AC Input) Web Price $1,340.00
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![]() PKE596AC-HS100 3.54 in. (90 mm) 5-Phase Geared Stepper Motor (AC Input) Web Price $1,340.00
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Frame Size | - 3.35 in85 mm | - 3.35 in85 mm | - 3.35 in85 mm | - 3.54 in90 mm | - 3.54 in90 mm | |||||
Motor Length | - 2.68 in.68 mm | - 3.86 in.98 mm | - 5.04 in.128 mm | - 2.68 in.68 mm | - 2.68 in.68 mm | |||||
Speed-Torque Characteristics |
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Holding Torque |
- 290 oz-in2.1 N·m | - 580 oz-in4.1 N·m | - 890 oz-in6.3 N·m | - 4640 oz-in33 N·m | - 7360 oz-in52 N·m | |||||
Type | - Standard | - Standard | - Standard | - Geared | - Geared | |||||
Shaft/Gear Type | - Round Shaft (No Gearhead) | - Round Shaft (No Gearhead) | - Round Shaft (No Gearhead) | - Harmonic Gear | - Harmonic Gear | |||||
Gear Ratio (X:1) | - | - | - | - 50 :1 | - 100 :1 | |||||
Backlash | - | |||||||||
Encoder Resolution | - | |||||||||
Shaft | - Single | |||||||||
Electromagnetic Brake | - Not Equipped | |||||||||
Current | - 0.75 A | |||||||||
Basic Step Angle | - 0.72° | - 0.72° | - 0.72° | - 0.0144° | - 0.0072° | |||||
Permissible Speed Range (r/min) | - | - | - | - 0 ~ 70 | - 0 ~ 35 | |||||
Rotor Inertia | - 6 oz-in²1100×10-7 kg·m² | - 12 oz-in²2200×10-7 kg·m² | - 18.1 oz-in²3300×10-7 kg·m² | - 7.1 oz-in²1300×10-7 kg·m² | - 7.1 oz-in²1300×10-7 kg·m² | |||||
Lost Motion | - | - | - | - 0.7 arc min maximum | - 0.7 arc min maximum | |||||
Permissible Overhung Load | - 0 in. from Shaft End = 58 lb0.2 in. from Shaft End = 65 lb0.39 in. from Shaft End = 76 lb0.59 in. from Shaft End = 87 lb0.79 in. from Shaft End = 108 lb0 mm from Shaft End = 260 N5 mm from Shaft End = 290 N10 mm from Shaft End = 340 N15 mm from Shaft End = 390 N20 mm from Shaft End = 480 N | - 0 in. from Shaft End = 58 lb0.2 in. from Shaft End = 65 lb0.39 in. from Shaft End = 76 lb0.59 in. from Shaft End = 87 lb0.79 in. from Shaft End = 108 lb0 mm from Shaft End = 260 N5 mm from Shaft End = 290 N10 mm from Shaft End = 340 N15 mm from Shaft End = 390 N20 mm from Shaft End = 480 N | - 0 in. from Shaft End = 58 lb0.2 in. from Shaft End = 65 lb0.39 in. from Shaft End = 76 lb0.59 in. from Shaft End = 87 lb0.79 in. from Shaft End = 108 lb0 mm from Shaft End = 260 N5 mm from Shaft End = 290 N10 mm from Shaft End = 340 N15 mm from Shaft End = 390 N20 mm from Shaft End = 480 N | - 0 in. from Shaft End = 240 lb0.2 in. from Shaft End = 250 lb0.39 in. from Shaft End = 270 lb0.59 in. from Shaft End = 290 lb0.79 in. from Shaft End = 310 lb0 mm from Shaft End = 1090 N5 mm from Shaft End = 1150 N10 mm from Shaft End = 1230 N15 mm from Shaft End = 1310 N20 mm from Shaft End = 1410 N | - 0 in. from Shaft End = 240 lb0.2 in. from Shaft End = 250 lb0.39 in. from Shaft End = 270 lb0.59 in. from Shaft End = 290 lb0.79 in. from Shaft End = 310 lb0 mm from Shaft End = 1090 N5 mm from Shaft End = 1150 N10 mm from Shaft End = 1230 N15 mm from Shaft End = 1310 N20 mm from Shaft End = 1410 N | |||||
Permissible Thrust Load | - 4.10 lb18.60 N | - 6.60 lb29.40 N | - 9 lb40.20 N | - 290 lb1300 N | - 290 lb1300 N | |||||
Safety Standards |
- UL CE | |||||||||
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