Tos Znojmo MRT-RT 100, Instructions For Use Manual

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8
Radial load F
rad
: aa half of the slip-on full shaft (see the sketch) is considered
the origin of radial force F
rad
for the determination of this value. If the radial force
on the shaft acts within a longer distance, max. permissible load must be re-
duced. E.g. only 80 % of the value shown in the table is acceptable for the load-
ing in the point of 75 % of the full shaft. Load higher by 25 % can be allowed for
the load in the point of 30 % of the full shaft length. If pulley, chain wheel or gear
wheel, etc. is installed on the outlet shaft, the radial load can be determined
from the following formula and the figure 3.1:
F
rad
= radial load /N/
T
2
= output torque /Nm/
D = rated diameter of pulley
(pitch circle) /mm/
k = load factor
1.20 for chain wheels
1.25 for front gear wheels
1.50 for pulleys
It means the radial load of the shaft can be decreased by increasing the pul-
ley diameter, if possible. If radial load is still high or the force acts on the full
shafwithin long distance, external support in bearings
must be applied for the
transfer of forces.
Axial load F
ax
: the values specified present about 20% of permissible radial
load F
rad
.
4) Noise Emission:
acoustic pressure level A, when using A balance filter, does not exceed 70
dB. Measured according to ČSN EN 60034-9, ČSN ISO 3740, ČSN ISO
3744 and ČSN ISO 3746 standards.
5) Transport:
worm-gear units are delivered in wooden casing, provided with KORING
preservation for 3 months and are fixed to prevent undesirable movement
in the casing. Prevention against vibrations or fall is necessary. Check
the package properly
prior to opening to identify prospective damage.
Fig. 3.1