Central spindle for baby carriage

The invention provides a central spindle for a baby carriage. The central spindle comprises a central spindle body, which is characterized by comprising a limiting board and a bearing shaft segment, a first circle arc shape transitional surface is formed on the place between the limiting board and the bearing shaft segment, a cone shape clip head is formed on the edge of the other side of the bearing shaft segment, a limit shaft segment is formed on the inner side of the cone shape clip head, and the surface roughness of the bearing shaft segment and the limit shaft segment is Ra=0.8. The central spindle for the baby carriage adopts a warm forging technology processing, after the forge forming, the inner tissues of the blank take a fiber flow distribution, the cracking situation of the central spindle body is guaranteed not to appear, then the central spindle body adopts the technology of heat processing, so that the tensile strength, the hardness, the plasticity and the tenacity of the central spindle body o