This part of JB/T 4241 specifies the end structure and dimensions of the boring spindle and milling spindle of horizontal milling and boring machines. This section applies to general-purpose horizontal milling and boring machines with a spindle diameter less than or equal to 130 mm.
JB/T 4241.2-2013 Referenced Document
GB/T 1443-1996 Machine tools--Self-holding tapers for tool shanks
GB/T 3837-2001 7/24 tapers for tool shanks for manual changing
JB/T 4241.2-2013 history
2013JB/T 4241.2-2013 Boring and milling machines with horizontal spindle.Part 2: Spindle nose
2011JB/T 4241.1-2011 Boring and milling machines with horizontal spindle.Part 1:Types and parameters
1999JB/T 4241.2-1999 Horizontal milling and boring machine series
JB/T 4241.2-2013 Boring and milling machines with horizontal spindle.Part 2: Spindle nose has been changed from JB/T 4241.3-1999 Horizontal boring and milling machine Main shaft end.