Stober 1 Servo Gear Units

PH Series (A, Q, QA): INLINE — Flange Output
PH Performance Overview
PH Series performance is dependent on several factors including duty cycle, bearing design, gearhead size and stage configuration, among
others. Use the chart below for preliminary evaluation, then use the following performance chart and selection information on the following
pages for specific performance sizing and selection.
Size 3 4 5
Series PH/PHA PH/PHA PHQ/PHQA PH/PHA PHQ/PHQA
# of Stages 1 2 1 2 1 2 1 2 1 2
Acceleration Torque
M 2BMAX
Nm 65 130 170 320 430
Output Torque Nom. 1
M 2N
Nm 45 90 120 220 280
Torsional Stiffness
C 2
Nm/arcmin ≤15 ≤35 ≤39 ≤85 ≤99
Torsional Backlash 2)
Δφ
arcmin
PH/PHQ
PHA/PHQA
≤4
≤2
≤3
≤1
≤3
≤1
≤3
≤1
≤3
≤1
Input Speed Max.
n 1MAX
With ServoCool Option
Continuous
Cyclic
Continuous
Cyclic
3800
6000
4500
8000
— —
3500
6000
4500
6000
4500
8000
2000
6000
4500
8000
— — —
3300
6000
4500
6000
4000
7000
5000
7000
2500
5000*
4000
7000
— —
Efficiency (@nom torque) % 96 94 96 94 96 93 96 94 96 93
Weight
kg
lbs
1.8
4
1.8
4
3.9
9
4.6
10
3.9
9
4.5
10
6.6
15
8.1
18
6.6
14.5
8.1
18
Noise 3) dB(A) ≤61 ≤62 ≤60 ≤63 ≤61
Performance by Bearing Design Option 4)
Axial Load Max.
F 2AMAX
N 1650 2150 4150
Tilting Moment Max.
M 2KMAX
Nm 100 260 440
Tilting Stiffness
C 2K
Nm/arcmin 53 160 380
* PHQ cyclic speed is 5000; PHQA is 5500
1)
Ratings based on input speed (n 1
) of 2000 RPM.
For torque at higher input speeds (M 2NX
) solve the formula:
where n 1
= Actual Input Speed.
M2NX =
M 2N
3
n 1
2000
2)
Tested at 1.5% of nominal torque and recorded on the output side of the gearhead. For lower backlash, contact STOBER technical support.
3)
Measurement at one (1) meter distance with input speed (n 1
) of 2000 RPM.
4)
Rating based on output speed (n 2
) of 100 RPM. For values at other speeds see page 52.
48 Servo Gear Units V.28
800.711.3588 • www.stober.com