This part of BS 4999 specifies the dimensions of rotating electrical machines which are outside the scope of BS EN 50347.It specifies the dimensions of skirt-mounted motors, pad-mounted motors, slide rails, shaft extensions with two tapped holes, and foot-mounted frames for d.c. machines.It also specifies the dimensions of foot-mounted motors, flange-mounted motors, shaft ends and keyways, and shaft extensions with single tapped holes, all of which are above the size range covered by BS EN 50347.
BS 4999-141:2004+A1:2010 Referenced Document
BS EN 50347 General purpose three-phase induction motors having standard dimensions and outputs - Frame numbers 56 to 315 and flange numbers 65 to 740
BS 4999-141:2004+A1:2010 history
2004BS 4999-141:2004+A1:2010 General requirements for rotating electrical machines - Specification for standard dimensions
2004BS 4999-141:2004 General requirements for rotating electrical machines - Specification for standard dimensions
2001BS EN 50347:2001 General purpose three-phase induction motors having standard dimensions and outputs - Frame numbers 56 to 315 and flange numbers 65 to 740