Planetary Gearhead GP 8 A ∅8 mm, 0.01–0.1 Nm
maxon gear
Technical Data
Planetary Gearhead
straight teeth
Output shaft
stainless steel, hardened
Bearing at output
ball bearing
Radial play, 5 mm from flange
max. 0.08 mm
Axial play
0.08 mm
Max. permissible axial load
5N
Max. permissible force for press fits
10 N
Sense of rotation, drive to output
=
Recommended input speed
< 12 000 rpm
Recommended temperature range
-15…+80°C
Number of stages
1
2
3
4
5
Max. radial load, 5 mm
from flange
5N
6N
7N
8N 8N
M 2.5:1
Stock program
Standard program
Special program (on request)
Part Numbers
370419
370420
370421
370422
370423
381894
381895
381896
381897
381898
4:1
4
1
1
0.010
0.015
90
2.6
1.80
0.004
9.2
16 : 1
16
1
2
0.020
0.030
81
3.2
2.00
0.004
11.7
64 : 1
64
1
3
0.060
0.090
73
3.8
2.20
0.004
14.3
256 : 1
256
1
4
0.080
0.120
65
4.4
2.50
0.004
16.9
1024 : 1
1024
1
5
0.100
0.150
59
5.0
2.80
0.004
19.5
40.0
42.6
Gearhead Data
1
2
3
4
5
6
7
8
9
10
11
Reduction
Reduction absolute
Max. motor shaft diameter
Number of stages
Max. continuous torque
Intermittently permissible torque at gear output
Max. efficiency
Weight
Average backlash no load
Mass inertia
Gearhead length L1
mm
Nm
Nm
%
g
°
gcm2
mm
4:1
4
1
1
0.010
0.015
90
2.6
1.80
0.004
10.8
16 : 1
16
1
2
0.020
0.030
81
3.2
2.00
0.004
13.4
64 : 1
64
1
3
0.060
0.090
73
3.8
2.20
0.004
16.0
256 : 1
256
1
4
0.080
0.120
65
4.4
2.50
0.004
18.6
1024 : 1
1024
1
5
0.100
0.150
59
5.0
2.80
0.004
21.1
overall length
overall length
maxon Modular System
+ Motor
RE 8, 0.5 W
RE 8, 0.5 W
EC 8, 2 W
Page
73
73
163
+ Sensor/Brake
Page
MR
296
June 2013 edition / subject to change
1308_Gear.indd 231
Overall length [mm] = Motor length + gearhead length + (sensor/brake) + assembly parts
26.9
29.5
32.1
34.7
37.2
33.5
36.1
38.7
41.3
43.8
32.3
34.8
37.4
maxon gear
231
13.06.2013 08:28:14