Hiwin MG Series - Appendix; Maximum Speeds and Accelerations; Tightening Torques for Fixing Screws

Appendix
57
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
12. Appendix
12.1 Maximum speeds and accelerations for HIWIN linear guideways
The following maximum speeds and accelerations are permitted for HIWIN linear guideways
1)
:
Model Max. speed v
max
[m/s] Max. acceleration a
max
[m/s
2
]
QH, QE, QW 5 50
HG, EG, CG, WE, QR 4 40
RG 3 30
MG 2 30
Table 12.1 Permissible maximum speeds and accelerations for HIWIN linear guideways
1)
Depending on the application, higher values are possible. Please consult HIWIN on this matter.
12.2 Tightening torques for fixing screws
Insufficient tightening of the fixing screws strongly compromises the precision of the linear guideway; the following tighten-
ing torques are therefore recommended for the relevant screw sizes.
Table 12.2 Tightening torques of the fixing screws according to ISO 4762-12.9
Screw size Torque [Nm] Screw size Torque [Nm]
M2 0.6 M8 31
M3 2.0 M10 70
M4 4.0 M12 120
M5 9.0 M14 160
M6 14.0 M16 200
The load-bearing capacity of the linear guideway is often limited not by its load-bearing strength, but the screw
connection. We therefore recommend checking the maximum permitted load-bearing capacity of the screw con-
nection in accordance with VDI 2230.
NOTE
In the RG, QR and CG series, the blocks are each equipped with 2 additional threaded holes. Upon delivery these
are sealed with green sealing plugs.
In order to achieve a high rigidity of the linear guideway even under high loads, we generally recommend using
all available threaded holes for fastening the adjacent construction.
NOTE