Datasheet

24
7
0 200 400 600 800 1000 1200
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
G3
G1
MINIRAIL Product Overview
7.2.4 Running Accuracy
In terms of tolerances, the running of the carriage on a guideway can take on either
a linear or wave-like shape. The maximum permissible deviation is limited by the
accuracy class of the guideway. As shown on the following diagram, the tolerance
is determined by the rail length and by accuracy class G1 or G3.
Example according to the diagram:
A rail length of 600 mm and accuracy class G1 results in a maximum
permissible deviation of 4.0 µm
7.2.5 Preload Classes
The preload classes are defined as a fraction of the dynamic load capacity C
(see chapter 17). The amount of preload is generally based on the intended use
of the guideways.
An increased preload …
… increases the rigidity
… increases the displacement resistance
… reduces the service life
Preload class Preload corresponding accuracy class
V0 light preload
up to 0.01 • C
G3
V1 0 to 0.03 • C G1 or G3
Running accuracy ∆ (μm)
Rail length (mm)