Resin molded product and manufacturing method of resin molded product

A resin molded product, comprising a first molded portion and a second molded portion, wherein

• the first molded portion has a component as an insert, and a first resin portion that is integral with the component,
• the second molded portion has a second resin portion,
• the first resin portion has a first face, a second face, a third face, and a fourth face, the first face is annular,
• the second face is a face that includes a normal of the first face,
• the second face is annular and extends along the first face,
• the second face is disposed adjacent to the first face,
• the third face is recessed in a normal direction of the first face,
• the third face is annular and extends along the first face,
• the third face is disposed adjacent to the first face, on an opposite side from the second face,
• the fourth face is recessed in a normal direction of the second face,
• the fourth face is annular and extends along the second face,
• the fourth face is disposed adjacent to the second face, on an opposite side from the first face,
• a distance on the first face between the second face and the third face in the normal direction of the second face is defined as a first distance,
• a distance on the second face between the first face and the fourth face in the normal direction of the first face is defined as a second distance,
• a distance on the third face between the first face and a position on the third face farthest from the first face in the normal direction of the first face is defined as a third distance,
• a distance on the fourth face between the second face and a position on the fourth face farthest from the second face in the normal direction of the second face is defined as a fourth distance,
• the fourth distance has a relation as to the first distance of ⅓≤the fourth distance/ the first distance≤ 9/10,
• the third distance has a relation as to the second distance of ⅓≤the third distance/ the second distance≤ 9/10,
• the first distance has a relation as to the second distance of ⅖≤the first distance/the second distance ≤ 5/2, and
• the second resin portion is in contact with all faces of the first face, the second face, the third face, and the fourth face, of the first resin portion.