PolyChain® GT Timing Belts - Walther Flender
PolyChain® GT Timing Belts - Walther Flender
PolyChain® GT Timing Belts - Walther Flender
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<strong>Walther</strong> <strong>Flender</strong> Gruppe<br />
PolyChain ® <strong>GT</strong> <strong>Timing</strong> <strong>Belts</strong> PAGE 25<br />
Load factor S 1<br />
The load factor S 1 is found in the intersecting point of the<br />
previously classified driven machine (row) and in the machine<br />
Driven machines Drive<br />
For machines not listed, select a safety factor that most nearly<br />
corresponds to one of the listed groups.<br />
Class The different types of driven machines<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
filling systems, measuring devices, medical<br />
instruments<br />
floor cleaning equipment, sewing machines,<br />
office machines, light-duty woodworking<br />
machines, band saws, drills and lathes<br />
conveyor systems for small packages, wood slats,<br />
presses, lathes, washing machines, heavy-duty<br />
woodworking machines, sawing machines<br />
stirring machines for viscous liquids, dough<br />
mixers, conveyor belts: coal, sand, ore, shaft<br />
drives, drills, lathes, screwdrivers, peeling<br />
machines, grinding machines, circular saws,<br />
planing machines, paper machines (except<br />
masticators) pressing-embossing machines,<br />
shears, printing presses, centrifugal pumps and<br />
compressors, vibration machines<br />
tile-moulding machines, conveyor belts, fans,<br />
generators, centrifugal blowers, elevators / lifting<br />
gear, extruders<br />
brick and clay machines, conveyor systems:<br />
flat and bucket lifts/worm screws, centrifuges,<br />
hammer mills, paper machines, textile machines<br />
class of the driven machine in question, taking into account the<br />
duty cycle (column).<br />
AC and three-phase motors, normal<br />
starting torque, e.g. with short circuit<br />
rotor motors, compound DC motors,<br />
internal combustion engines with more<br />
than 4 cylinders<br />
short-term<br />
operation<br />
3 – 8 hours<br />
daily<br />
normal<br />
operation<br />
8 – 16 hours<br />
daily<br />
continuous<br />
operation<br />
16 – 24 hours<br />
daily<br />
AC and three-phase motors, high<br />
starting torque, e.g. single-phase and<br />
synchronous motors, three-phase<br />
braking motors, hydraulic motors,<br />
internal combustion engines with up to<br />
4 cylinders<br />
short-term<br />
operation<br />
3 – 8 hours<br />
daily<br />
normal<br />
operation<br />
8 – 16 hours<br />
daily<br />
continuous<br />
operation<br />
16 – 24 hours<br />
daily<br />
1.0 1.2 1.4 1.2 1.4 1.6<br />
1.1 1.3 1.5 1.3 1.5 1.7<br />
1.2 1.4 1.6 1.6 1.8 2.0<br />
1.3 1.5 1.7 1.6 1.8 2.0<br />
1.4 1.6 1.8 1.8 2.0 2.2<br />
1.5 1.7 1.9 1.9 2.1 2.3<br />
7 pulverising machines, ventilators for mines 1.6 1.8 2.0 2.0 2.2 2.4<br />
8<br />
piston compressors, mills: ball mill, rubble mill<br />
and sawmill equipment, piston pumps<br />
1.7 1.9 2.1 2.1 2.3 2.5<br />
The listed safety factors can be used as reference values for numerous applications, but they cannot replace a detailed technical assessment<br />
of the particular application.
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