PA Series

The PA Series Inline ServoFit® Precision Gearhead is the optimal solution for precision, smoothness, and uniformity of motion.  It is the advanced version of our P Series, making it the most accurate and efficient planetary gearhead available.

Type Ratio Max. perm. acceleration torque [Nm] Weight [kg] Max. perm. input speed in cyclic operation [1/min] Backlash [arcmin] Torsional stiffness [Nm/arcmin]
PA321 3 – 10 50 – 65 2.1 – 2.9 6000 – 8000 2 4 – 5.5
PA322 12 – 100 50 – 65 2.4 8000 3 3.9 – 4.6
PA421 3 – 10 100 – 120 4 – 4.7 5500 – 7000 2 8.9 – 12
PA422 12 – 100 100 – 120 5.2 – 5.9 6500 – 8000 3 8.8 – 11
PA521 3 – 10 200 – 300 6.5 – 8.2 4500 – 6500 1 25 – 33
PA522 12 – 100 200 – 300 8.5 – 9.2 6000 – 7000 2 24 – 28
PA721 3 – 10 500 – 700 12 – 16 3700 – 6000 1 49 – 59
PA722 12 – 100 500 – 700 15 – 17 5000 – 6500 2 49 – 53
PA821 3 – 10 1200 – 1600 26 3000 – 4500 1 149 – 176
PA822 12 – 100 1200 – 1600 32 – 36 4500 – 6000 2 148 – 171