S=C PLUS „Set Constant”
This stands for wrapped V-Belts that can be used in a set
without measuring

Optibelt S=C PLUS - power transmission for perfectionists
Whether in automobiles, tool making machines or electrical appliances,
there is one thing for sure:
The drive commands the performance! We have developed the
Optibelt S=C PLUS for special requirements, an extremely durable
V-belt which meets the highest demands even under difficult conditions.
Perfect, precise and reliable.


Example for S=C PLUS length tolerances for a high performance wedge belt
with 5.000 mm datum length.

The dimension (A) is the tolerance permitted according to DIN of an individual
V-belt with a length of 5.000 mm. If you want to assemble sets for multi-groove
drives, the individual belt lengths may not show deviations of more than 6 mm (B)
from each other.

The tolerance of the Optibelt S=C PLUS V-belt is considerably lower than the
set tolerance permitted by the standard.

S=C PLUS V-belts are always close to the nominal length.