NEN EN 50347 : 2001
Current
The latest, up-to-date edition.
GENERAL PURPOSE THREE-PHASE INDUCTION MOTORS HAVING STANDARD DIMENSIONS AND OUTPUTS - FRAME NUMBERS 56 TO 315 AND FLANGE NUMBERS 65 TO 740
01-12-2013
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
Covers general purpose standard dimensioned three-phase induction motors for 50 Hz with rated voltages not exceeding 690 V for industrial purposes.
| DevelopmentNote |
Supersedes NEN 3321. (04/2002) Supersedes NEN 10072-1. (08/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DIN EN 50347:2003-09 | Identical |
| UNE-EN 50347:2003 | Identical |
| BS EN 50347:2001 | Identical |
| NF EN 50347 : 2001 | Identical |
| I.S. EN 50347:2001 | Identical |
| EN 50347:2001 | Identical |
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