| 摘要 |
According to an application example having many rotary shaft seal rings, in order to provide an assembly and a rotary shaft seal ring capable of achieving high dynamic sealing performance as one component, the assembly has a shaft (1) and the rotary shaft seal ring (2). The rotary shaft seal ring (2) surrounds the shaft (1), and comprises a support (3) combined to an elastomer body (4). The elastomer body (4) forms a seal lip (5) in contact with the shaft (1), and the seal lip (5) comprises a seal front end part (6) curved in a sine wave form as being extended along an inner circumference of the seal lip (5). The seal front end part (6) comes in contact with an outer circumference (7) of the shaft (1), and comprises a first side (6a) forming at least one angle (α) between 40-80 degrees with a longitudinal axis of the shaft (1) and at the same time a second side (6b) forming at least one angle (β) between 10-60 degrees with the longitudinal axis of the shaft (1). The rotary shaft seal ring (2) is applied to the assembly. |
