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

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
PK523PA-PS10	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 56 oz-in0.4 N·m	- 0.35 A/phase	- Planetary Gear	- 10 :1	-	- Single	Add To Cart Request Quote
PK523PA-PS5	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 28 oz-in0.2 N·m	- 0.35 A/phase	- Planetary Gear	- 5 :1	-	- Single	Add To Cart Request Quote
PK523PA-PS7	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 42 oz-in0.3 N·m	- 0.35 A/phase	- Planetary Gear	- 7.2 :1	-	- Single	Add To Cart Request Quote
PK523PB-PS10	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 56 oz-in0.4 N·m	- 0.35 A/phase	- Planetary Gear	- 10 :1	-	- Double	Add To Cart Request Quote
PK523PB-PS5	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 28 oz-in0.2 N·m	- 0.35 A/phase	- Planetary Gear	- 5 :1	-	- Double	Add To Cart Request Quote
PK523PB-PS7	- 1.1 in28 mm	- 0.72º	Speed-Torque Characteristics	- 42 oz-in0.3 N·m	- 0.35 A/phase	- Planetary Gear	- 7.2 :1	-	- Double	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
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-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
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
PK543AW-H100S	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 704 oz-in5 N·m	- 0.75 A/phase	- Harmonic Gear	- 100 :1	- None	- Single	Add To Cart Request Quote
PK543AW-H50S	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 480 oz-in3.5 N·m	- 0.75 A/phase	- Harmonic Gear	- 50 :1	- None	- Single	Add To Cart Request Quote
PK543AW-T10	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 141 oz-in1 N·m	- 0.75 A/phase	- Taper Hobbed Gear	- 10 :1	- None	- Single	Add To Cart Request Quote
PK543AW-T20	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 211 oz-in1.5 N·m	- 0.75 A/phase	- Taper Hobbed Gear	- 20 :1	- None	- Single	Add To Cart Request Quote
PK543AW-T3.6	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 48 oz-in0.35 N·m	- 0.75 A/phase	- Taper Hobbed Gear	- 3.6 :1	- None	- Single	Add To Cart Request Quote
PK543AW-T30	- 1.65 in42 mm	- 0.72º	Speed-Torque Characteristics	- 211 oz-in1.5 N·m	- 0.75 A/phase	- Taper Hobbed Gear	- 30 :1	- None	- Single	Add To Cart Request Quote