Spur gears steel, milled - Nozag AG

22.
180
Factors f 1 and f 2
Dependent on the operational conditions
and the number of teeth z1 of the small
chain wheel
Factor f 1, operational conditions
Filling machines
with constant feed
Printing machines
Woodworking machines
Paper and textile calenders
Drying drums
Stirrers for liquids
Escalators
Machine tool main drives
Spinning and knitting
Machines
Centrifugal- pumps
and compressors
Rotary barrel mixer
Uniform 1)
f 1 = 1.0
© by Nozag Switzerland - 2009
© by Nozag Switzerland - 2009
Conveyors
with non uniform loads
Washing machines
Concrete mixers
Hollander machines
Ball mills
Stirrers for solids
Cranes, winches, hoists
drawing benches
Presses and sheers
Looms
non uniform 1)
f 1 = 1.5
Piston- pumps and compressors
with 3 cylinders
Riddle and roller conveyors
1) The next higher value f 1 is to be selected if the drive unit does not operate uniformly like an electric motor, but instead with an internal combustion engine
with less than 4 cylinders, or submit the problem to us.
Factor f 2, dependant on number of teeth z 1
z 1 15 17 19 21 23 25
f 2 1.3 1.1 1.0 0.9 0.8 0.75
Oil drilling equipment
Rubber possessing
machines
Wood grinder
Hammer mills
Crush and grinding
machines
Brickwork machines
Welding generators
Fork lift trucks
Piston- pumps and compressors
with 1 or 2 cylinders
ventilating fans
intermittent loads
f 1 = 2.0