Static and dynamic alignment

Meeting static and dynamic alignment needs

SKF performs dynamic, static and geometric measurements on any part of the propulsion train, as well as other rotating equipment on board. This can vary from planned maintenance to 24/7 troubleshooting anywhere around the globe.

For some alignment measurements, SKF uses 3D measurement equipment. With this equipment we can also perform other 3D measurements.

Dynamic alignment measurements

These measurements are performed on vessels that are in operation. Measurements include:

Dynamic shaft movement: Determines the shaft’s position and orbit

Dynamic machine movement:
Movement of machines caused by torque, thrust and/or heat

Dynamic shaft alignment:
Measurement of shaft bending stress to calculate the horizontal and vertical bearing loads and offsets

Vibration:
Data collection and analysis of vibration of rotating equipment


Static alignment measurements

These measurements are performed on vessels that are not in operation. Decoupling of shafts may be necessary. Measurements include:

Horizontal and vertical alignment: The positioning of two components relative to each other

Static shaft alignment:
Measurement of shaft bending stress to calculate the horizontal and vertical bearing loads and offsets
Bearing loads / Jack-up tests: Measurement of vertical bearing loads.

Geometric measurements

Measurements include:

Straightness and line bore: Measurement of the relative position of components over a required distance. Applications include bed plate of engines and steering installations, and stern tubes

Flatness: Measurement to determine slope, tilt or curvature. Applications include bed plates, and slewing bearing beds.

Perpendicularity: Measurement to determine if two planes are at 90 degrees of each other. Applications include seal landing faces, and positioning of container racks.

Parallelism: Alignment of elements of an installation parallel to each other. Applications include bores in gearboxes, and guiding rails for hatches and cranes.

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