This standard specifies the type and size of the boring shaft end of floor-standing milling and boring machines. This standard is applicable to milling spindles of floor-standing milling and boring machines with a milling spindle diameter of 130 to 260mm.
JB/T 4366.2-1999 history
2011JB/T 4366.2-2011 Floor type milling & boring machine spindle end.Part 2:Milling shaft end dimension
1999JB/T 4366.2-1999 Floor type boring and milling machine Main shaft end Dimensions of milled shaft end