Features of PK High-Torque 2-Phase Stepping Motors

1. High Torque

The PK motors deliver dramatically higher torque than comparably sized motors.  Since they are the same external size as other models (although shaft diameters are different), PK motors are perfect for applications where you want a little higher torque.  Simply switch motors and the torque would be 1.5 times higher.  The PK motors are also recommended for applications where smaller equipment is needed, since a smaller motor can now drive the same equipment.

2. Low Vibration

The PK motors do more than provide higher torque, they are also designed to produce less vibration.  This makes PK motors the ideal choice for micro-step drives.

3.  Low Noise

Changes in the PK motor design have also reduced vibration.  The entire motor structure has been revamped to reduce noise.
 

Specifications (at 2-phase excitation)

Model
Holding Torque oz-in 
N-m
Current Per Phase A/phase
Voltage
Resistance Per Phase ohm/phase
Inductance per Phase mH/phase
Rotor Inertia 
J
oz-in2
kg-m2
PK264-01A
PK264-01B
54.2
0.39
1
5.7
5.7
5.4
0.66
120x10-7
PK266-01A
PK266-01B
125
0.90
1
7.4
7.4
10
1.64
300x10-7
PK268-01A
PK268-01B
187
1.35
1
8.6
8.6
14
2.62
480x10-7
PK296-01AA
PK296-01BA
305
2.2
2
4.4
2.2
7.7
7.65
1400x10-7
PK299-01AA
PK299-01BA
611
4.4
2
6.4
3.2
14
14.8
2700x10-7
PK2913-01AA
PK2913-01BA
916
6.6
2 
7.6 
3.8 
19.2 
21.9
4000x10-7

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