Technical Basics Linear Axis - NTN-SNR LINEAR AXIS AXC Series Manual

1.

Technical basics Linear Axis

1.1 Product features
NTN-SNR – Linear Axis are compact components which contain a combination of guiding and driving elements. The modular design
and the ability to combine Linear Axis within a product line and various product lines allow the user to design a simple, time-saving and
economical solution for linear movements. The use of high quality components guarantees a high quality and reliability of Linear Axis.
The figures 1.1 to 1.4 show the basic structure of all NTN-SNR - Linear Axis and their main components:
Figure 1.1 ___ Structure Toothed belt axis
Figure 1.3 ___ Structure Rack-and-Pinion axis
1 Base profile
2 Slider unit with carriages or Track rollers
The base profile holds the guiding rails in case of Linear Guides or steel shafts in case of Track Roller Guides. The guiding rails are
screwed to the profile (Figure 1.5), the steel shafts are pressed into in the profile (Figure 1.6). The base profile is, with few exceptions,
an anodized aluminum profile. The Linear Axis of the AXBG series and special designs of AXS and AXLT series are based on steel
profiles. The base profile largely determines the stiffness of a Linear Axis.
Figure 1.5 ___ Profile with guiding rails
Figure 1.2 ___ Structure Screw drive axis
Figure 1.4 ___ Structure Linear motor axis
3 Drive element
4 Drive unit or Drive bearing unit
Figure 1.6 ___ Profile with steel shafts
7
5 Cover strip or Protection elements (optional)