Patent attributes
A pressure disk includes spring receiving portions for mounting coil springs that are elastically installed between the pressure disk and a clutch center. The spring receiving portions are aligned circumferentially on the outside in a radial direction with respect to an oil take-in hole. The spring receiving portions are provided with a supply hole in a side surface portion thereof toward the inside of the pressure disk. The supply hole introduces the oil supplied from the oil take-in hole. The spring receiving portion includes a discharge hole which discharges to the outside the oil introduced in the spring receiving portion. An inside cylindrical portion of the clutch center includes communication holes communicating with the outside.