Track rollers for
Vee bars/Plain rollers
- type FR/LR
The backlash setting
and the pre-tensioning
of the rollers takes
place via the eccentric
hub of the rollers
of the series FR..,
FR..R or
LR.., LR..R.
The FR..Z
and LR..Z
series are the concentric
models. In the eccentric
rollers, the inner
bolts are provided
with two holes. These
allow for the adjustment
of the backlash. If
a roller is located
in its zero position,
the teeth backlash
will be the standard
value of 0.05 mm flank
clearance.
The service life of
the system will be
reduced by excessive
tensioning. With too
little tension the
rollers will not run,
or will wear due to
the poor meshing.
Friction
The roller guides
have a very low coefficient
of friction. This
value is slightly
increased by the fitting
of wipers to the rails.
Corrosion
resistance
Elements of the series
with the suffix ..R
are available in stainless
steel.
Dimensions of plain
rollers
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