This standard specifies the machining allowances and tolerances for stepped shaft free forgings with circular cross-sections. This standard applies to stepped shafts whose ratio of the total length L of the part to the maximum diameter D of the step (L/D) is greater than 2.5.
GB/T 15826.7-1995 history
2008GB/T 21471-2008 Machining allowancs and tolerances for steel open die forgings on hammer.Shafts
1995GB/T 15826.7-1995 Machining allowances and tolerances for steel open die forgings on hammer--Shaft with steps
GB/T 15826.7-1995 Machining allowances and tolerances for steel open die forgings on hammer--Shaft with steps was changed to GB/T 21471-2008 Machining allowancs and tolerances for steel open die forgings on hammer.Shafts.