Monition Ltd

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Offset Motor Shaft Alignment

Offset, or Cardan shafts are an excellent way of power transmission, when it is impossible to configure two machines, such as a motor and pump, in line. There is the general misunderstanding, however, that offset mounted cardan driven machines do not require alignment.

A misaligned cardan shaft rotates with an uneven angular speed over a full turn. This generates vibrations with harmful forces throughout the drive chain, which will cause adverse load and wear on Motor components. The risks with misaligned cardan shafts in a motor drive train are similar to other misaligned machines, with the addition of the safety risks for damages caused by a broken cardan shaft.

As shown in the diagram above, a misaligned cardan rotates with an uneven angular speed over a full turn.

 The Fixturlaser XA Motor Shaft Alignment System combined with the Offset Shaft Alignment fixture expansion kit makes precision alignment of offset mounted motors and machines possible. The payback time for an Offset Motor Alignment system such as this is very short considering the costs for replacing a broken cardan shaft.

The XA Offset Alignment Expansion Brochure can be downloaded by clicking here

ABOVE: Fixturlaser Offset fixtures for alignment of offset Motors. The Expansion kit includes the cardan shaft extension arms, specially designed 'turrets' for mounting the XA System laser heads, along with a range of fixing screws, all contained within a heavy-duty carry case.

Beenfits of the Fixturlaser Offset XA Expansion Kit:

• Allows for a fast and accurate alignment of offset mounted drives
• The fixtures are equipped with point laser, hence no need to use the alignment system during the set up of fixtures
• Inclinometers in each laser unit will locate the right position of the lasers

ABOVE: Screenshot for the Fixturlaser XA Offset Alignment program - the colour LCD touchscreen and live data screen instantly displays movement of the laser or shafts.

Benefits of using the Fixturlaser XA System with the Offset Expansion upgrade to Conduct Offset Alignment:

• Reduced wear on gearboxes, bearings and cardan joints.
• Full documentation of measurement result.
• Minimised risk for cardan shaft breakdown.

A Fixturlaser XA Offset Motor Shaft Alignment Toolkit offers precision alignment of offset motor shafts to within hundredths of a millimetre. The latest XA Offset Motor Shaft Alignment System manufactured by Fixturlaser offers sophisticated laser alignment technology that is fast and easy to operate in Industrial Environments. Monition is the distributor for Fixturlaser Laser Alignment systems here in the UK. For additional information telephone Monition on 01909 722000. Alternatively you can email us at sales@monition.com.