0.79 in. (20 mm) NEMA 8 PK Series 5-Phase Stepper Motors

The high-torque PK/PKP series stepper motor offers balanced performance enhanced by high torque, low vibration and low noise.

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Gear Type

Taper Hobbed, Low Backlash (up to 45 arc min), Offset Shaft
Planetary, Low Backlash (up to 35 arc min), Centered Shaft
Planetary, Non Backlash (3 arc min), Centered Shaft
Harmonic, Non Backlash (0 arc min), Centered Shaft
No Gearhead

Shaft

Single
Double

Item #	Frame Size	Basic Step Angle	Speed-Torque Characteristics	Holding Torque	Current per Phase	Shaft/Gear Type	Gear Ratio (X:1)	Encoder Output	Shaft	Add To Cart / Contact Sales

PK543AWM	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 18.4 oz-in0.13 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK544AWM	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 25 oz-in0.18 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK545AWM	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 34 oz-in0.24 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK564AWM	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 59 oz-in0.42 N·m	- 1.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK566AWM	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 117 oz-in0.83 N·m	- 1.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK569AWM	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 230 oz-in1.66 N·m	- 1.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK523HPA-H50S	- 1.18 in30 mm	- 0.72º	Speed - Torque Characteristics	- 254 oz-in1.8 N·m	- 0.75 A/phase	- Harmonic Gear	- 50 :1	-	- Single	Add To Cart Request Quote
PK523HPB-H50S	- 1.18 in30 mm	- 0.72º	Speed - Torque Characteristics	- 254 oz-in1.8 N·m	- 0.75 A/phase	- Harmonic Gear	- 50 :1	-	- Double	Add To Cart Request Quote
PK523HPA-H100S	- 1.18 in30 mm	- 0.72º	Speed - Torque Characteristics	- 336 oz-in2.4 N·m	- 0.75 A/phase	- Harmonic Gear	- 100 :1	-	- Single	Add To Cart Request Quote
PK523HPB-H100S	- 1.18 in30 mm	- 0.72º	Speed - Torque Characteristics	- 336 oz-in2.4 N·m	- 0.75 A/phase	- Harmonic Gear	- 100 :1	-	- Double	Add To Cart Request Quote
PKP544N18A	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 36 oz-in0.26 N·m	- 1.8 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PKP544N18B	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 36 oz-in0.26 N·m	- 1.8 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PKP546N18A	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 62 oz-in0.44 N·m	- 1.8 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PKP546N18B	- 1.65 in42 mm	- 0.72º	Speed - Torque Characteristics	- 62 oz-in0.44 N·m	- 1.8 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PKP564FN24AW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 78 oz-in0.55 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PKP564FN24BW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 78 oz-in0.55 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PKP569FN24AW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 240 oz-in1.7 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PKP569FN24BW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 240 oz-in1.7 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PKP566FN24AW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 134 oz-in0.95 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PKP566FN24BW	- 2.36 in60 mm	- 0.72º	Speed - Torque Characteristics	- 134 oz-in0.95 N·m	- 2.4 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PK543AW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 18.4 oz-in0.13 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK543BW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 18.4 oz-in0.13 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PK544AW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 25 oz-in0.18 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote
PK544BW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 25 oz-in0.18 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PK545AW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 34 oz-in0.24 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote