5
4
Design and function
1
Housing
2
Air outlet
3
Silencer
4
Hose grommet
5
Air inlet
6
Mounting slots
7
Turbine with unbalances
8
Steel ball
9
Steel roller
Function
The vibrators generate circular vibrations, i.e. the vibrations act in all directions of a plane.
The air inlet (5) and the air outlet (2) are indicated by arrows on the housing (1).
The silencer (3) reduces the sound level and protects the interior of the housing from impurity.
The frequency and therefore also the centrifugal force are determined by the pressure of the
drive medium.
Two mounting slots (6) are provided for fastening.
NCT:
A turbine (7) rotates in the housing with eccentrically inserted unbalances. Depending
on the type, a different number of unbalances are pressed into the turbine, so that different
unbalances are possible for each housing size. The turbine is mounted in permanently lubri-
cated rolling bearings. These are fitted in the housing and cover.
NCB:
The vibration (circular oscillation) is generated by the centrifugal force of a rotating steel
ball (8) which runs on a hardened steel race. The housing is closed by a pressed-in cover.
NCR:
The vibration (circular oscillation) is generated by the centrifugal force of a rotating steel
roller (9) that runs in the housing on an inner ring made of steel.