Shaft alignment and load
Improper alignment (misalignment) may result in bearing overloads, premature bearing failures, vibrations and shaft
failures. Flexible coupling does not compensate for excessive misalignment.
The type of the electric machine shaft is W50x2x24x8f. Recommended female connection
counterpart is of type N50x2x24x9H. The ange type is SAE3.
Alignment between the shaft and mating structure must be accurate.
The misalignment can be parallel or angular misalignment, or combination of those. With parallel
misalignment, the center lines of both shafts are parallel but they are offset. With angular
misalignment, the shafts are at an angle to each other. Figures below illustrate the parallel and
angular misalignment.
Figure 13. Parallel alignment of the shaft and mating structure
Figure 14. Angular alignment of the shaft and mating structure
The maximum external force directed to the shaft axially and radially may not exceed machine speci c values. Calculate
these values with the document DOC-000454.
EM-PMI375
4. Design principles
| BC265856307805en-000105
©
Danfoss | Produced By: Danfoss Power Solutions | January 2019 | 27
Summary of Contents for EM-PMI375-T1100
Page 1: ...User Guide Motor Generator EM PMI375 danfoss com...
Page 77: ......
