Hiwin MG Series - Page 37

Lubrication
37
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
Alternatively, the block can be lubricated from above. In this case, an O-ring is used as a seal. See Table 8.2 for the size of
the O-ring. If you order the block with the option of lubrication from above selected, the lubrication hole will be open and the
required O-ring enclosed. If the block is ordered without lubrication, the hole must first be opened.
In the countersink for the O-ring, there is a further recess.
X Open the recess with a 0.8 mm diameter drill to a maximum depth of T
max
according to Table 8.2.
W
do
Ø 0.8
T
max
Once opened, lubrication holes for lubrication from above can not be subsequently closed with a screw plug.
NOTE
Fig. 8.3 Lubrication connection on the top
8.3.3 Lubrication connection on the top
Fig. 8.4 Lubrication connection on the top (HGH, CGH, RGH),
see Section 8.3.3.1
Fig. 8.5 O-ring to cover the lubrication connection on the top
Fig. 8.6 Maximum piercing depth T
max