Screw Drive GP 8 S ∅ 8 mm, metric lead screw
Technical Data Screw
M3 x 0.5, stainless steel
Standard length
56 mm
Special length (5 mm steps)
max. 100 mm thread nut bronze* < 0.1 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
473643 473644 473645 473646 473647
Screw Drive Data Reduction
1 2
4 : 1 4 ⁄ 1 15
16 : 1 16 ⁄ 1 6.3
64 : 1 256 : 1 1024 : 1
Absolute reduction Max. feed velocity 1
64 ⁄ 1 1.6 27 9 3 22 7.5 2.2
256 ⁄ 1 0.4 14 27 19 8.1 2.5 4
1024 ⁄ 1 0.1 22 27
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 8 1
6 2 18 24 6.9 2.0
4 7 8 9
5
% 27
17 8.7 2.8
g
6.3 1.8
°
23 10 11
mm 0.112 0.112 0.112 0.112 0.113
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
*Note: This spindle nut contains leaded bronze for functional reasons. This product therefore does not fulfill the requirements for the permitted maximum concentration of hazardous substances in accordance with the EC directive 2011/65/EC (RoHS) for all applications. The screw drives may therefore only be used for devices that are not subject to this directive.
maxon screw drive 471
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