Lubrication
47
Assembly instructions
Linear Guideways
GW-04-0-EN-1910-MA
8.11 Initial lubrication upon commissioning
Danger of damage to the linear guideways due to missing or incorrect lubrication!
Missing initial lubrication or excessive lubricant quantities/excessive lubrication pressure can damage or destroy the
product.
X Never put the linear guideway into operation without initial lubrication!
X The specified procedure must be observed in order to avoid damaging the product!
ATTENTION!
8.11.1 Performance
X Apply the amount of grease specified in Section 8.13 by slowly pressing the grease gun.
X Move the block by about three block lengths.
X Repeat this process two more times.
X Move the block over the entire travel path and check the entire profile rail to see whether a lubricant film can be
detected.
The initial lubrication process for the linear guideway has been carried out.
At initial lubrication the blocks are supplied with the amount of grease that is needed to reach the lubrication
intervals specified. Afterwards the lubrication channels are completely filled with grease, a switch from grease
to oil lubrication is not possible anymore without a complete cleaning of the block.
8.11.1.1 Initial lubrication for short-stroke applications
For short-stroke applications (stroke
<
2 × block length), the initial lubrication is to be carried out as follows.
Stroke
<
2 × block length:
Provide lubrication connections on both sides of the block and carry out lubrication according to Section 8.11.1 for the cor-
responding lubrication connection.
A lubricating nipple for grease lubrication is available for size 15 in the case of miniature type MG. For sizes 5, 7, 9 and 12, we
recommend using a suitable spray grease (such as FUCHS PLANTO Multispray S).
X Apply the lubricant evenly to the ball bearing races along the entire length of the profile rail.
X Move the block along the entire stroke.
X Remove any surplus grease if necessary.
The initial lubrication process for the MG linear guideway has been carried out.
If minimum displacement resistance is required or the environmental conditions are very clean, we recommend
lubricating the MG series with oil (see Section 8.13.3).
8.11.1.2 Initial lubrication – MG series
Stroke
<
0,5 × block length: Please consult with HIWIN.
If a lubricant film cannot be detected along the entire length of the profile rail, increase the quantity of lubricant
used.
For basic lubrication of the linear guideways a grease suitable for rolling and slide bearings with mineral oil as
base oil and thickeners according to DIN 51825 (K2K), NLGI class 2 is used. Base oil viscosity for QR: 100 mm
2
/s
at 40 °C; base oil viscosity for QH, QE, QW: 200 mm
2
/s at 40 °C.
The lubrication condition can deviate from the standard mentioned here, the lubrication condition in the respec-
tive order documents is binding.
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