DIMENSIONS AND OUTPUT SERIES FOR ROTATING ELECTRICAL MACHINES - FRAME NUMBERS 56 TO 400 AND FLANGE NUMBERS 55 TO 1080
International Electrotechnical Committee
Contents
Foreword
Clause
1. Scope
2. Letter-symbols for dimensions
3. Designation of machines
4. Location of the terminal box
4.1 Machines with feet
4.2 Machines with flange only
5. Position of holes in the mounting flange
6. Fixing dimensions
6.1 Foot-mounted machines
6.2 Flange-mounted machines
7. Shaft extension, keys and keyways dimensions.
Greatest permissible torques on continuous duty
for a.c. motors
8. Tolerances for flange-mounted machines
8.1 Shaft extension run-out
8.2 Concentricity of spigot diameter and
perpendicularity of mounting face of flange to
shaft
8.3 Methods of measurement
8.3.1 Shaft extension run-out
8.3.2 Concentricity of spigot and shaft
8.3.3 Perpendicularity of mounting face of
flange to shaft
8.4 Tolerances for machines other than flange-mounted
machines
9. Preferred rated output values
10. Dimensional sketches
Annexes
A Guide for the selection of dimensions
B Reference planes and symbols for mounting dimensions of
rotating electrical machines
C Conversion millimetre/inches and kilowatt/horsepower
Covers the bulk of rotating electrical machines for industrial purposes and gives tables of fixing dimensions, shaft extension dimensions and output powers. Amends title and modifies designation of machines. Replaces existing tables for basic dimensions and inch conversions of metric values of mounting flanges, and existing table dimensions. Also replaces existing figure of dimensional sketches.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 2 |
