Linear Line EN

6 Installation instructions

Parallel installation of two rails

When two rails with guiding sliders RV, a V+P system or a V+U sys tem are installed the height difference of the two rails must not ex ceed a certain value (obtainable from the table below) in order to en sure proper guiding. These maximum values result from the maximum allowable twisting angle of the rollers in the raceways (see tab. 32). These values account for a load capacity reduction of 30% on the rail and must absolutely be maintained in every case.

b

α

a

b

α

Fig. 70

a

α

Size

18

1 mrad (0.057°)

28

2.5 mrad (0.143°)

43

3 mrad (0.171°)

Tab. 32

When using two rails, the maximum parallelism deviation must not be exceeded (see tab. 33). Otherwise stresses can occur, which can result in a reduction in load capacity and service life.

Rail size

K1

K2

18

0.03

0.02

28

0.04

0.03

43

0.05

0.04

Tab. 33

Fig. 71

Note: For parallelism problems, it is recommended to use a V+P/U or A+P/U system, since these combinations compensate for inaccuracies (see pg. CR-24, or CR-26 ).

CR-40