Instruction Manual PSx3xxPN-STO
8
2.2 Installation
Hollow shaft:
The PSx3xx is mounted on the machine by sliding it with the hollow shaft onto the
spindle to be driven and fixing it with the clamping ring (recommended shaft diameter
8 h9 or 14 h9; tightening torque of the clamping ring screw with 3 mm hexagon
socket: 1.5 Nm).
The depth of the hollow bore is 20 mm. For optimum operation, the pin
of the shaft to be driven should correspond to this depth. Depending
on the operating situation, significantly shorter pins (< 16 mm) may
cause damage to the PSx3xx. When mounting the PSx3xx, it should
only be pushed on until the foam rubber plate lies evenly on the
bottom of the machine or is compressed to approx. half its thickness.
Under no circumstances may the PSx3xx "hard" be screwed to the
machine without an air gap.
The rotation lock is made via the pin (in the picture below the hollow shaft) into a
suitable bore as rotary torque support. This hole must be slightly larger than the
diameter 6 h9 of the pin. An oblong hole or slot with a slightly larger width
(recommended: 6.05...6.10 mm) than the dimension of the pin diameter is optimal.
The backlash when changing the direction of rotation has a direct influence on the
positioning accuracy and can lead to damage to the PSx3xx with very large backlash
(a few mm) due to the impact load
The PSx3xx must have a little gap on all sides when mounted, as it
can move axially and/or radially during positioning if the hollow shaft
and solid shaft are not 100% aligned. This "staggering" is not a defect
of the PSx3xx and also has no influence on the function, as long as it
can move freely.
