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

PK513PA	- 0.79 in20 mm	- 0.72º	Speed-Torque Characteristics	- 3.2 oz-in0.0231 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK513PB	- 0.79 in20 mm	- 0.72º	Speed-Torque Characteristics	- 3.2 oz-in0.0231 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Double	Add To Cart Request Quote
PK523PA	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 6.8 oz-in0.048 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK523PB	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 6.8 oz-in0.048 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Double	Add To Cart Request Quote
PK525PA	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 11 oz-in0.078 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK525PB	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 11 oz-in0.078 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Double	Add To Cart Request Quote
PK523PMA	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 5.9 oz-in0.042 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK523PMB	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 5.9 oz-in0.042 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Double	Add To Cart Request Quote
PK524PMA	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 8.6 oz-in0.061 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK524PMB	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 8.6 oz-in0.061 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Double	Add To Cart Request Quote
PK525PMA	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 13 oz-in0.09 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- Single	Add To Cart Request Quote
PK525PMB	- 1.1 in28 mm	- 0.36º	Speed-Torque Characteristics	- 13 oz-in0.09 N·m	- 0.35 A/phase	- Round Shaft (No Gearhead)	-	-	- 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
PK543NAW	- 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
PK543NBW	- 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
PK544NAW	- 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
PK544NBW	- 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
PK544PA	- 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
PK544PB	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 34 oz-in0.24 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PK545NAW	- 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
PK545NBW	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 34 oz-in0.24 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Double	Add To Cart Request Quote
PK546PA	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 59 oz-in0.42 N·m	- 0.75 A/phase	- Round Shaft (No Gearhead)	-	- None	- Single	Add To Cart Request Quote