Mounting - Siemens SITRANS WS300 Operating Instructions Manual

Mounting

The input shaft on the WS300 is coupled to the rotating shaft on a belt driven pulley and is
not externally supported. The unit's arresting rod stops it from rotating with the pulley
shaft and can be fitted with a spring to soften sudden speed changes.
CAUTION: The arresting rod should only be solidly attached to the
WS300. Fixing the rod at both ends will apply binding forces and
cause the unit's bearings to wear prematurely.
When mounting, make sure the unit and the pulley shaft are concentric to avoid stresses
on the unit's bearings.
For preferred mounting locations, refer to the associated belt scale or weigh feeder
instruction manual.
For shafts that do not have enough material protruding to use a set screw, or that cannot
be removed for modification, a threaded shaft coupling can be used.
7ML19985ML01 SITRANS WS300 Speed Sensor – OPERATING INSTRUCTIONS Page 7