Datasheet

MINIRAIL Product Overview

7.2 MINIRAIL Product Overview

7.2.3 Accuracy Classes

MINIRAIL carriages and guide rails are made to a high precision independently of

each other. The carriages are interchangeable. This means that any carriage of the

same size and accuracy class can be used on the guide rails without influencing

the preload class.

MINISCALE PLUS carriages and guide rails are also made to a high precision. Due

to the integrated linear encoder, the carriage and guideway are matched together

and therefore can only be changed as a set.

Both G1 and G3 accuracy classes offer a precise MINIRAIL range suited to the

application-specific needs of the customer. The accuracy classes determine the

size tolerances and the running accuracy of the carriages on the guideways:

High accuracy G1

Standard accuracy G3

Note:

MINIRAIL are available in accuracy classes G1 and G3

MINISCALE PLUS are always delivered in accuracy class G1.

Tolerances

A and B2 ΔA and ΔB2

Accuracy class G1 +/- 10 µm 7 µm

Accuracy class G3 +/- 20 µm 15 µm

Measured relative to

carriage centre

Difference in measurement

between several carriages

on the same position on

the rails

For the measurements mentioned above, the guideway

is mounted on a at surface. Measurement is taken

from the middle of the carriage. Since the measure-

ment is stable, it is based on the midpoint of the two

supporting surfaces

Marked side

Reference side