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

Unit of Measure

Items	PK513PA 0.79 in. (20 mm) 5-Phase Stepper Motor	PK513PB 0.79 in. (20 mm) 5-Phase Stepper Motor	PK513PA-H50S 0.79 in. (20 mm) 5-Phase Stepper Motor	PK513PB-H50S 0.79 in. (20 mm) 5-Phase Stepper Motor	PK513PA-H100S 0.79 in. (20 mm) 5-Phase Stepper Motor
Frame Size	- 0.79 in
Motor Length	- 1.18 in.	- 1.18 in.	- 1.77 in.	- 1.77 in.	- 1.77 in.
Basic Step Angle	- 0.72º
Speed-Torque Characteristics	- Speed-Torque Characteristics	- Speed-Torque Characteristics	- Speed-Torque Characteristics	- Speed-Torque Characteristics	- Speed-Torque Characteristics
Holding Torque	- 3.2 oz-in	- 3.2 oz-in	- 56 oz-in	- 56 oz-in	- 85 oz-in
Current per Phase	- 0.35 A/phase
Type	- High-Torque	- High-Torque	- Geared	- Geared	- Geared
Shaft/Gear Type	- Round Shaft (No Gearhead)	- Round Shaft (No Gearhead)	- Harmonic Gear	- Harmonic Gear	- Harmonic Gear
Gear Ratio (X:1)	-	-	- 50 :1	- 50 :1	- 100 :1
Backlash	-
Encoder Output	-
Motor Connection Type	- Connector
Shaft	- Single	- Double	- Single	- Double	- Single
Step Angle	- 0.72 °	- 0.72 °	- 0.0144 °	- 0.0144 °	- 0.0072 °
Connection Type	- New Pentagon (Bipolar)
Lead Wires	- 5
Rotor Inertia	- 0.017 oz-in²
Lost Motion	-	-	- 2 arc min max.	- 2 arc min max.	- 2 arc min max.
Static Friction Torque	-
RoHS Compliant	- Yes
Safety Standards	- UL CSA CE	- UL CSA CE	- UL CSA EN CE	- UL CSA EN CE	- UL CSA EN CE
Radial Load	- 0 in. from Shaft End = 2.7 lb0.2 in. from Shaft End = 3.3 lb	- 0 in. from Shaft End = 2.7 lb0.2 in. from Shaft End = 3.3 lb	- 0 in. from Shaft End = 11.2 lb0.2 in. from Shaft End = 16.8 lb	- 0 in. from Shaft End = 11.2 lb0.2 in. from Shaft End = 16.8 lb	- 0 in. from Shaft End = 11.2 lb0.2 in. from Shaft End = 16.8 lb
Axial Load	- 0.67 lb	- 0.67 lb	- 13.5 lb	- 13.5 lb	- 13.5 lb