A torsional damper apparatus

摘要

A torsional damper apparatus (1) includes a clutch hub (10) having a hub portion and a flange portion (11) extending in a radially outward direction from the hub portion, a first side plate (20A) and a second side plate (20B) coaxially disposed on opposite sides of the clutch hub and relatively rotatable with the clutch hub and first (30A) and second (30B) thrust members retained between contact faces of the clutch hub and the first side plate, and contact faces of the clutch hub and the second side plate respectively. At least one of the first thrust member and the second thrust member includes a base portion (31) and a coating layer (32) faces the flange portion and including a metallic particle having a smaller hardness than the clutch hub and a thermosetting resin.