Positioning systems General Positioning systems are compact and economic complete solutions. The assortment ranges from compact slides without drives through to highly dynamic, multi-axis systems with linear motor drive. SKF offers the following positioning systems: Miniature slides (➔ figure 1); Standard slides (➔ figure 2); Dovetail slides (➔ figure 3); Compact cross tables (➔ figure 4); Precision slides without drive (➔ figure 5); Precision slides with drive (➔ figure 6); Linear ball bearing slides (➔ figure 7); Linear axes, type Pico (➔ figure 8); Profile rail slides (➔ figure 9); Complete systems (➔ figure 10); LZM miniature slides With the new LZM miniature slide SKF offers the ideal solution for linear motion applications for short strokes and compact boundary dimensions. The use of miniature slides has increased in medical applications,
measurement technologies, pneumatics, micro mechanics and micro electronics assembly, semiconductor manufacturing and fibre optics. The different miniature slide components meet the highest precision standards; LZM miniature slides feature high running accuracy and smooth motion. The LZM are manufactured with all stainless steel components. Optimised hardness enables long endurance life and high performance within compact boundary dimensions. The miniature slides have been designed to ensure high system stiffness and precision guidance. Running accuracies of 2 µm over a stroke of 100 mm are attainable depending on the particular application. Ease of installation is another advantage of the LZM miniature slides. Unlike cross roller systems using 4 rails and cages to be assembled on the production floor, the LZM slide provides a complete slide that can simply be bolted into place without the use of precision devices to set preload.
Figure 1
Every application provides new challenges for the modern designer. SKF will modify existing designs to meet your specific technical requirements. Advantages for LZM miniature slides: ● Compact design ● High carrying capacity ● Very good running accuracy ● Smooth running ● High stiffness ● Easy assembly Dimensions see table on page 313
Operating precision (➔ Table 1) Comparison of the different positioning components and systems.
Table 1
© SKF 2005
Positioning systems
Standard drives or linear motors with all guiding systems
Linear motors
Ball screws
Roller screws
Actuation systems
Electro-mechanical actuators
100 – 1000
Cam roller guides
10 – 100
Linear ball bearings
1 – 10
Profile rail guides
0.1 – 1
Driving systems
Standard slides
Guiding systems
Precision rail guides
Operating precision (µm)
307
5