• NBN EN 50347 : 2002

    Current The latest, up-to-date edition.

    GENERAL PURPOSE THREE-PHASE INDUCTION MOTORS HAVING STANDARD DIMENSIONS AND OUTPUTS - FRAME NUMBERS 56 TO 315 AND FLANG NUMBERS 65 TO 740

    Available format(s): 

    Language(s): 

    Published date:  13-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Letter symbols and dimensional sketches
      3.1 Letter-symbols for dimensions
      3.2 Dimensional sketches
    4 Letters for frame sizes and flange numbers
    5 Location of the terminal box
      5.1 Machines with feet
      5.2 Machines with flange only
    6 Position of holes in the mounting flange (when
      machine also has feet)
    7 Fixing dimensions and tolerances
      7.1 Foot-mounted machines
      7.2 Flange-mounted machines
      7.3 Shaft end dimensions
      7.4 Parallelity of shaft to foot-face
      7.5 Parallelism of keyway to shaft axis
      7.6 Lateral displacement of keyway
    8 Methods of measurement
      8.1 Shaft extension run-out
      8.2 Concentricity of spigot and shaft
      8.3 Perpendicularity of mounting face of flange to shaft
      8.4 Parallelity of shaft to foot-face
      8.5 Parrallelism of keyway to shaft axis
      8.6 Lateral displacement of keyway
    9 Relationships frame sizes - shaft extensions - rated
      outputs - flange numbers

    Abstract - (Show below) - (Hide below)

    Covers general purpose standard dimensioned three-phase induction motors for 50 Hz with rated voltages not exceeding 690 V for industrial purposes.

    General Product Information - (Show below) - (Hide below)

    Development Note Supersedes NBN C 51 231. (05/2002)
    Document Type Standard
    Publisher Belgian Standards
    Status Current
    Supersedes
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