PHA Series Performance Overview
Gearhead Size Nominal Output Torque
Nm
Torsional Backlash¹
arcmin
Input Speed Max. (Cyclic)
rpm
Axial Load Max.
N
Acceleration Torque
Nm
Torsional Stiffness
arcmin
Stage 1 2 1 2 1 2 1 2 1 2 1 2
PHA3 45 ≤2 6000 8000 1650 65 ≤12
PHA4 90 ≤1 6000 8000 2150 130 ≤33
PHA5 220 ≤1 6000 7000 4150 320 ≤80
PHA7 440 ≤1 5000 6500 6150 700 ≤155
PHA8 1250 ≤1 4000 6000 10,050 2,000 ≤424
PHA9 3000 ≤1 4500 33,000 5000 ≤1240
PHA10 5000 ≤1 4500 50,000 7500 ≤1778
Notes
1)  Tested at 1.5% of nominal torque and recorded on the output side of the gearhead. For lower backlash, contact STOBER technical support.
2)  Rating based on output speed (n2) of 20 RPM.
3)  Two stage

Output Shaft Load

radial axial