The PHQ Series ServoFit® Precision Gearhead utilizes a four-planet system for quattro power. It is ideal for applications requiring the ultimate torsional stiffness and tilting rigidity. This planetary speed reducer has a flange output, backlash up to ≤3 arcmin, short motor adapter length, and readily attaches to any servo motor.
| Type | Ratio | Max. perm. acceleration torque [Nm] | Weight [kg] | Max. perm. input speed in cyclic operation [1/min] | Backlash [arcmin] | Torsional stiffness [Nm/arcmin] |
|---|---|---|---|---|---|---|
| PHQ421 | 5.5 | 170 | 3.9 – 4.6 | 6000 | 3 | 42 |
| PHQ422 | 22 – 55 | 170 | 4.6 – 5.2 | 6500 – 8000 | 3 | 35 – 37 |
| PHQ521 | 5.5 | 425 | 6.6 – 8.3 | 5500 | 3 | 107 |
| PHQ522 | 22 – 55 | 425 | 8.1 – 8.8 | 6000 – 7000 | 3 | 87 – 95 |
| PHQ721 | 5.5 | 950 | 13 – 17 | 5000 | 3 | 235 |
| PHQ722 | 22 – 55 | 950 | 15 – 16 | 5000 – 6500 | 3 | 195 – 207 |
| PHQ723 | 88 – 550 | 950 | 16 – 17 | 6000 – 7000 | 3 | 195 – 204 |
| PHQ822 | 22 – 55 | 2600 | 40 – 44 | 4500 – 6000 | 3 | 615 – 661 |
| PHQ823 | 88 – 550 | 2600 | 43 – 44 | 5000 – 6500 | 3 | 611 – 647 |
| PHQ932 | 18 – 60 | 6000 | 81 – 86 | 3000 – 4500 | 3 | 1149 – 1237 |
| PHQ933 | 72 – 600 | 6000 | 85 – 89 | 4500 – 6000 | 3 | 1145 – 1207 |
| PHQ1032 | 24 – 60 | 10000 | 118 | 3000 – 4000 | 3 | 1974 – 2090 |
| PHQ1033 | 96 – 600 | 10000 | 128 – 133 | 3500 – 4500 | 3 | 1969 – 2068 |
| PHQ1133 | 96 – 300 | 22000 | 238 – 242 | 3500 – 4500 | 3 | 3491 – 3533 |
| PHQ1233 | 96 – 420 | 43000 | 452 | 3000 – 4000 | 3 | 6137 – 6287 |
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