PA Series

Precision for highest demands. Helical gearing. High torsional stiffness. Backlash up to ≤1 arcmin. Robust solid shaft. Synchronous servo motor EZ. Extremely compact. Highest power per unit volume. Large torque. High dynamic.
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Type

Ratio

Max. perm. acceleration torque [Nm]

Stall torque at the gear unit output [Nm]

Max. perm. input speed in cyclic operation [rpm]

Backlash [arcmin]

Torsional stiffness [Nm/arcmin]

PA321 3 – 10 15 – 65 4.9 – 43 6000 – 8000 2 4 – 5.7
PA322 12 – 50 32 – 65 11 – 45 8000 3 4.1 – 4.6
PA421 3 – 10 25 – 120 11 – 85 5500 – 7000 2 9 – 13
PA422 12 – 80 32 – 120 11 – 89 6500 – 8000 3 9.2 – 11
PA521 3 – 10 58 – 300 23 – 230 4500 – 6500 1 25 – 36
PA522 12 – 70 97 – 300 32 – 229 6000 – 7000 2 25 – 28
PA721 3 – 10 155 – 700 77 – 456 3700 – 6000 1 50 – 65
PA722 12 – 80 182 – 700 66 – 532 5000 – 6500 2 52 – 54
PA821 3 – 10 422 – 1392 194 – 729 3000 – 4500 1 153 – 220
PA822 12 – 100 467 – 1600 219 – 1234 4500 – 6000 2 148 – 172

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