Unit Conversion Tool
We're Here to Help
Business Hours - Monday to Friday, 8:30am EST to 5:00pm PST
U.S.A. Customers:
Customer Service - 1-800-418-7903
Tech Support – 1-800-GO-VEXTA (468-3982)
International Customers:
+1-847-871-5931 or
+1-310-715-3303
For Japanese:
1-800-746-6872 or
+1-310-715-3303
1-800-GO-VEXTA (468-3982)
The standard PK series 2-phase stepper motor offers balanced performance enhanced by high torque, low vibration and low noise.
- Encoder Model
Specifications
Product Line |
- VEXTA ® |
Motor Type |
- 2-Phase |
Motor Frame Size |
- 2.22 in. sq. |
Shaft/Gear Type |
- Round Shaft (No Gearhead) |
Holding Torque |
- Bipolar (Series) 166 oz-inUnipolar 127 oz-in |
Type |
- Standard |
Connection Type |
- Bipolar (Series) Unipolar Bipolar (Parallel) |
Lead Wires |
- 8 |
Current per Phase (A/phase) |
- 1.4 [Bipolar (Series)] 2 [Unipolar] 2.8 [Bipolar (Parallel)] |
Encoder |
- Equipped |
Shaft |
- Single |
Voltage (VDC) |
-
2.52 [Bipolar (Parallel)] 5 [Bipolar (Series)] 3.6 [Unipolar] |
Resistance (Ω/phase) |
-
0.9 [Bipolar (Parallel)] 3.6 [Bipolar (Series)] 1.8 [Unipolar] |
Inductance (mH/phase) |
-
2.5 [Bipolar (Parallel)] 10 [Bipolar (Series)] 2.5 [Unipolar] |
Step Angle |
- 1.8 ° |
Rotor Inertia (oz-in2) |
- 1.64 oz-in2 |
RoHS Compliant |
- Yes |
Insulation Resistance |
- 100 M Ω or more when 500 VDC megger is applied between the windings and the case under normal ambient temperature and humidity. |
Dielectric Strength |
- Sufficient to withstand 1.0 kVAC at 50 Hz or 60 Hz applied between the windings and the case for 1 minute under normal ambient temperature and humidity. |
Temperature Rise |
- Temperature rise of the windings is 176°F (80°C) or less measured by the change resistance method. (at rated current, at standstill, 2 phases energized) |
Insulation Class |
- Class B [266°F (130°C)] |
Ambient Temperature Range |
- 14 ~ 122°F (-10 ~ 50°C) (non-freezing) |
Ambient Humidity |
- 85% or less (non-condensing) |
Shaft Runout |
- 0.05 mm (0.002 in.) T.I.R. |
Concentricity |
- 0.075 mm (0.003 in.) T.I.R. |
Perpendicularity |
- 0.075 mm (0.003 in.) T.I.R. |
Radial Play |
- 0.025 mm (0.001 in.) maximum of 5 N (1.12 lb.) |
Axial Play |
- 0.075 mm (0.003 in.) maximum of 10 N (2.2 lb.) |
Step Accuracy |
- ±3 arc minutes (±0.05°) |
Encoder Type |
- Incremental |
Encoder Resolution (P/R) |
- 200 |
Output |
- 2-Channel A, B |
Input Current (mA) |
- 17 (Typ.) |
Input Voltage (V) |
- 5 ±10% |
Output Type |
- TTL |
Output Voltage (Low) |
- 0.4 volts @ 3.2 mA (Max.) |
Output Voltage (High) |
- 2.4 volts @ -40 μA (Min.) |
Response Frequency (kHz) |
- 100 (Max.) |
