NTN-SNR LINEAR AXIS AXC Series Manual page 13

Rack and pinion drive
Linear Axis with rack and pinion drive are characterized by a very high reliability and are therefore particularly suitable for vertical
applications. It is possible to line up any number of rack segments (Figure 1.19). The inductive hardened racks and pinions (Figure
1.20) ensure a very long service life.
Figure 1.19 __ Rack segments
Advantages of linear motor axis
•
Theoretically unlimited length possible
•
Several drive units possible
•
High feeding forces
•
Highest rigidity of the drive element even with high loads
Linear motor drive
For Linear Axis with linear motor drive there is no mechanical conversion of a rotary into a translatory movement necessary. For this
reason, a linear motor is described as linear direct drive. The driving force is directly generated by a motor integrated in the slider unit
(Figure 1.21).
Figure 1.21 __ Linear motor
Advantages of linear motor axis
•
Theoretically unlimited length possible
•
Several drive units possible
•
Highest position accuracy and repeatability
•
Very high velocity and acceleration
•
Maintenance and wear free drive element
•
Very low noise level
Figure 1.20 __ Rack and pinion
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