Screw Drive GP 8 S ∅ 8 mm, metric lead screw Ceramic Version
Technical Data Screw
M3 x 0.5, ceramic
Standard length Special length (5 mm steps)
56 mm
max. 100 mm thread nut stainless steel < 0.09 mm straight teeth ball bearing < 0.08 mm preloaded 12 000 rpm -15…+80°C
Nut (standard) Material Axial play Planetary gearhead
Bearing Axial play Radial play, 5 mm from flange Max. continuous input speed Recommended temperature range
Max. axial load (static) 1 Number of stages
25 N
1
2
3
4
5
Max. radial load, 5 mm from flange
M 5:2
5 N 5 N 5 N 5 N 5 N
Stock program Standard program Special program (on request)
Part Numbers
473636 473637
473639 473640 473641
Screw Drive Data (provisional) Reduction
1 2
4 : 1 4 ⁄ 1 25
16 : 1 16 ⁄ 1 6.3
64 : 1 256 : 1 1024 : 1
Absolute reduction Max. feed velocity 1
64 ⁄ 1 1.6 11 32 31 7.5 2.2 3
256 ⁄ 1 0.4 17 32 28 8.1 2.5 4
1024 ⁄ 1 0.1 27 32
20 21 22
mm/s
Max. feed force (continuous) 1 Max. feed force (intermittent) 1 Number of stages Max. efficiency gearhead incl. screw Weight 1 Average backlash no load Mechanical positioning accuracy 1 Mass inertia gearhead incl. screw 1 Gearhead length L1
N N
3 1 14
7 2 22 34 6.9 2.0
4 7 8 9
5
% 38
25 8.7 2.8
g
6.3 1.8
°
23 10 11
mm 0.087 0.087 0.087 0.087 0.088
0.005 0.004 0.004 0.004 0.004
gcm 2 mm
7.0
9.6
12.2
14.8
17.4
1 based on screw length 56 mm
overall length
overall length
overall length
RE 8, 0.5 W, A 128 RE 8, 0.5 W, B 128 Modular System + Motor Page
+ Sensor/Brake Page
Overall length [mm] = Motor length + gearhead length + (sensor / brake) + assembly parts
23.7 26.7 31.9
26.3 29.3 34.5
28.9 31.9 37.1
31.5 34.5 39.7
34.1 37.1 42.3
RE 8, 0.5 W, A 128 Enc 8 OPT
534
overall length
length L1
length L1
472 maxon screw drive
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