Mounting - Siemens SITRANS WS300 Operating Instructions Manual

Installing/mounting

3.3 Mounting

Dimensions in mm (inch)
①
½" NPT conduit entrance (optional M20 adapter available)
3.3 Mounting
The input shaft on the WS300 is coupled to the rotating shaft on a belt driven pulley and is not
externally supported. The units arresting rod stops it from rotating with the pulley shaft and can
be fitted with a spring to soften sudden speed changes.
Proper attachment of the arresting rod
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
units 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.
10
CAUTION
Operating Instructions, 08/2020, A5E45050935-AB
SITRANS WS300