Shaft alignment - why is angled??
Shaft alignment - why is angled??
(OP)
Hi everyone,
In a coupled steam turbine alternator arrangement (3000RPM, 10MVAe) should the DE bearings be slightly lower than the two NDE bearings? That is should both the turbine shaft and alternator shaft be slighly angled downward towards one another at the coupling? If this is so why is it done?
Many thanks to all in advance who humor a somewhat mystified electrical person.
In a coupled steam turbine alternator arrangement (3000RPM, 10MVAe) should the DE bearings be slightly lower than the two NDE bearings? That is should both the turbine shaft and alternator shaft be slighly angled downward towards one another at the coupling? If this is so why is it done?
Many thanks to all in advance who humor a somewhat mystified electrical person.





RE: Shaft alignment - why is angled??
Skip Hartman
http://www.machinerywatch.com
RE: Shaft alignment - why is angled??
RE: Shaft alignment - why is angled??
If it's a universal-joint type coupling, a little angle would be built-in to provide some rotation of the joint and avoid hammering the needle bearings to dust.
RE: Shaft alignment - why is angled??