| 摘要 |
PROBLEM TO BE SOLVED: To provide an oil seal molding die capable of suppressing a production cost low and suppressing variation of dimensional accuracy, while securing sealing performance.SOLUTION: An oil seal molding die 1 comprises a pair of a first division die 15 and a second division die 16 divided into two pieces in an axial direction. A first die face 30 formed of an annular taper face constituting one side of a valley shape molding face 11b in the axial direction is provided on the first division die 15, and a second die face 31 formed of an annular taper face constituting the other side of the valley shape molding face 11b in the axial direction is provided on the second division die 16. The first die face 30 and the second die face 31 are made to cross each other on a portion corresponding to an apex 4a of a main lip 4 to constitute the valley shape molding face 11b.SELECTED DRAWING: Figure 2 |
