Abstract: In a transfer structure of a vehicle according to one aspect of the present invention, a drive shaft includes: a first power transfer shaft including a first end coupled to a differential device; a second power transfer shaft including a first end coupled to a second end of the first power transfer shaft through a first universal joint; and a third power transfer shaft including a first end coupled to a second end of the second power transfer shaft through a second universal joint and a second end to which a driving wheel is coupled, and dampers are provided on at least two respective power transfer shafts. Among these dampers, a predetermined damper arranged on the longest power transfer shaft out of the at least two power transfer shafts functions in a frequency region lower than a frequency region in which a remaining damper functions.

Abstract: In a transfer structure of a vehicle according to one aspect of the present invention, a drive shaft includes: a first power transfer shaft including a first end coupled to a differential device; a second power transfer shaft including a first end coupled to a second end of the first power transfer shaft through a first universal joint; and a third power transfer shaft including a first end coupled to a second end of the second power transfer shaft through a second universal joint and a second end to which a driving wheel is coupled, and dampers are provided on at least two respective power transfer shafts. Among these dampers, a predetermined damper arranged on the longest power transfer shaft out of the at least two power transfer shafts functions in a frequency region lower than a frequency region in which a remaining damper functions.

Abstract: A seal lip having: a cylindrical seal surface in close contact with an outer peripheral surface of an inner race with outer side and inner side surfaces standing upright respectively from an outer end and an inner end of the seal surface and reaching a lip supporting portion of a seal member, and protruding on an inner peripheral surface of the lip supporting portion. The outer side surface is a perpendicular surface standing upright from the outer end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race. The inner side surface includes: a perpendicular surface standing upright from the inner end of the seal surface in parallel with the outer side surface; and a conical surface inclined toward the outer side surface extending outward in a radial direction from an outer peripheral end of the perpendicular surface.

Abstract: A seal lip having: a cylindrical seal surface in close contact with an outer peripheral surface of an inner race with outer side and inner side surfaces standing upright respectively from an outer end and an inner end of the seal surface and reaching a lip supporting portion of a seal member, and protruding on an inner peripheral surface of the lip supporting portion. The outer side surface is a perpendicular surface standing upright from the outer end of the seal surface in a direction perpendicular to a generating line of the outer peripheral surface of the inner race. The inner side surface includes: a perpendicular surface standing upright from the inner end of the seal surface in parallel with the outer side surface; and a conical surface inclined toward the outer side surface extending outward in a radial direction from an outer peripheral end of the perpendicular surface.