Hiwin MG Series - Relubrication Intervals

50
Lubrication
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
8.14 Relubrication
8.14.1 Relubrication intervals for grease lubrication
8.14.2 Relubrication intervals for lubrication with low-viscosity grease
8.14.3 Relubrication intervals for oil lubrication
Among other conditions, the relubrication intervals depend on the P/C load ratio, where P stands for the dynamically equiva-
lent load and C stands for the dynamic load rating.
The relubrication intervals for lubrication with low-viscosity grease are reduced by 25 %, based on the relubrication intervals
for grease lubrication (see Section 8.14.1).
The relubrication intervals for oil lubrication are reduced to 50 % of the relubrication intervals for grease lubrication (see
Section 8.14.1).
100
1,000
10,000
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
Relubrication interval [km]
P/C
QH, QE, QW, QR
HG, EG, WE, CG
MG
RG
The relubrication intervals can possibly be shortened under the following conditions. In such cases, please
consult HIWIN: v > 3 m/s, a > 30 m/s
2
, contact with media, temperatures < 20 °C or > 30 °C, soiled ambient
conditions.
NOTE
Check whether a film of oil can be seen on the total rail. If this is not the case, increase the lubricant quantity.
NOTE
Fig. 8.24 Load-dependent relubrication intervals for grease lubrication
Danger of damage to the linear guideways due to insufficient lubricant quantities!
Insufficient or excessive lubricant quantities/excessive lubrication pressure can damage or destroy the product.
X Ensure sufficient and regular relubrication!
X The specified procedure must be observed in order to avoid damaging the product!
ATTENTION!
The lubrication intervals depend heavily on the operating conditions (loads, speed, acceleration) and environmental condi-
tions (temperature, fluids, soiling etc.). Environmental influences such as high loads, vibrations, long travel distances and
dirt may shorten the lubrication intervals. Once the lubrication interval has passed, feed in the lubricant quantity as specified
in Section 8.13 by operating the grease gun in a single action or by adjusting the central lubrication system accordingly.