PE Series Performance
Gearhead Size Nominal Output Torque
Nm
Torsional Backlash¹
arcmin
Input Speed Max. (Cyclic)
rpm
Torsional Stiffness
arcmin
Stage 1 2 1 2 1 2 1 2
PE21 7.5 1 Stage
(3, 4, 5, 7, 10:1) = ≤10

2 Stage
(12, 16, 20, 25, 28, 35, 40, 50, 70, 100:1) = ≤13
8000 ≤1.4
PE31 23 30 6000 ≤4.1 ≤4.2
PE41 50 65 6000 ≤13 ≤14
PE51 130 160 5000 ≤33 ≤35
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.