Mounting And Start-Up - NTN-SNR LINEAR AXIS AXC Series Manual

3.

Mounting and Start-up

3.1 Transportation and storage
NTN-SNR Linear Axis are high-precision components. Heavy shocks could damage the mechanics of the Linear Axis and impair its
function. To avoid damage during transportation and storage, the following points should be observed:
• Protection against strong vibrations or shocks, aggressive substances, moisture and contamination
• Using of a sufficiently large packaging and prevent them against slipping during transportation
• Linear Axis can have lager weights and sharp edges. The transportation must be carried out by qualified staff with
appropriate personal protective equipment (safety shoes, gloves, ...).
• Linear Axis and packagings with Linear Axis can have great length. To prevent excessive bending during transportation,
the Linear Axis and their packaging must be supported at least two points, for lengths from more than 3 m at three points.
3.2 Design of the mounting surfaces / mounting tolerances
Any deviation of the flatness, straightness and parallelism of Linear Axis or mounted axis systems leads to tensions that cause additional
loads of the guiding elements and reduce the life time. In general, the higher load and kilometerage, the higher the requirements for
the mounting and alignment of the Linear Axis or the axis system.
For a safer function of single axis or axis systems ther straightness in the longitudinal dirction by the alignment of the individual axis
must be guaranteed according to Table 3.1:
Table 3.1 ____ Straightness tolerance for the mounting of Linear Axis
Size
all
For parallel Linear Axis is the permissible tolerance in the flatness (twisting) and the bending in the longitudinal direction also influenced
by the torsional rigidity of the cross traverse. The resulting moment loads (My) shall not exceed the catalog values (less load moment).
It must be noted that simultaneous variations in straightness (Table 3.1), flatness, bending and parallelism (tolerance e
3.2) result in an addition of the loads on the guiding system and must be taken into account pro rata.
Additional requirements for the quality of the mounting surfaces must be considered when the tables of parallel installed Linear Axis
are rigidly connected.
For a parallel installation, the Linear Axis of the AXC and AXF series are mainly suitable.
If the parallel installation of Linear Axis from other series is necessary, please contact for the selection process our NTN-SNR application
engineers.
Straightness tolerance after mounting / per meter [mm]
0,5
22
and e Table
0 1