Siemens Industry Online Support
Siemens AG
Entry type: FAQ Entry ID: 34391590, Entry date: 02/05/2009

Alignment tolerances

  • Entry
  • Associated product(s)








What alignment tolerances are there?







The necessary alignment tolerances for motor, coupling and driven machine are indicated in the respective machine manuals.



    Example:  Extract from a machine manual, 1LA4, four-pole.

nmax = 1500 rpm

xmax = 0,08 mm


nmax > 1500 rpm

xmax = 0,05 mm




nmax = 1500 rpm

xmax = 0,08 mm / 100 mm ØD


nmax > 1500 rpm

ymax = 0,05 mm / 100 mm ØD


Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit