BS 4999-141:1987

Foreword
Committees responsible
Specification
1 Scope
2 References
3 General
4 Shaft end dimensions
5 Dimensions of foot-mounted frames
6 Dimensions of flange-mounted frames
7 Dimensions of skirt-mounted frames
8 Dimensions of face-flange frames
9 Dimensions of large foot-mounted frames
10 Dimensions of pad-mounted or rod-mounted frames
11 Dimensions of slide rails
Tables
1 Dimensions of shaft ends and keyways
2 Dimensions of single tapped hole in shaft extension
3 Dimensions of two tapped holes in shaft extension
4 Fixing dimensions of foot-mounted frames, all
    enclosures
5 Fixing dimensions of foot-mounted frames, ventilated
    enclosure, for d.c. machines
6 Fixing dimensions of flange-mounted frames,
    enclosure D
7 Fixing dimensions of flange-mounted frames,
    enclosure C
8 Fixing dimensions of skirt-mounted frames, enclosure
    D
9 Fixing dimensions of skirt-mounted frames, enclosure
    C
10 Fixing dimensions of face-flange frames, enclosures
    C and D
11 Preferred fixing dimensions for large horizontal
    shaft motors with high shaft centres
12 Preferred fixing dimensions for large horizontal
    shaft motors with low shaft centres
13 Fixing dimensions of pad-mounted or rod-mounted
    frames, enclosure D
14 Standard dimensions of slide rails
15 Dimension AT for fabrication
Figures
1 Indicator mounting for measurement of spigot run-out
    and shaft extension run-out
2 Indicator mounting for measurement of squareness of
    mounting face of flange to shaft
3 Symbols for shaft end dimensions
4 Symbols for foot-mounted machines
5 Symbols for flange-mounted machines
6 Symbols for skirt-mounted machines
7 Symbols for face-flange mounted machines
8 Symbols for pad-mounted or rod-mounted machines
9 Symbols for slide rails

Dimensions for a series of frame sizes from 56 mm up to 400 mm centre height, and preferred values from which selection can be made for machines with centre height from 355 mm to 1000 mm. Also slide rails.