Rack bar and rack bar teeth forming die

A teeth forming die configured to form rack teeth of a rack bar to he meshed with a pinion gear, the teeth forming die comprising a securing portion configured to be secured to an outside clamp case, a rack teeth transfer portion provided on the securing portion, and at least one dummy tooth transfer portion,

• wherein the rack teeth transfer portion comprises a plurality rainy of rack tooth transfer portions provided side by side in a line,
• wherein each of the rack tooth transfer portions is configured to transfer a profile of each rack tooth, and each of the rack tooth transfer portions comprises a contact face transfer portion arranged obliquely relative to a direction of the line in which the rack tooth transfer portions are provided side by side and configured to transfer profile of a contact face of the rack tooth to be brought into contact with the pinion gear,
• wherein the dummy tooth transfer portion is configured to transfer a profile of a dummy tooth and is provided on at least one side of the rack teeth transfer portion in the direction of the line such that the dummy tooth transfer portion is arranged parallel to and next to the rack tooth transfer portions, and
• wherein a whole depth of the dummy tooth transfer portion is shallower than a whole depth of the rack tooth transfer portions.