Fixing device and image forming apparatus

An image forming apparatus comprising:

• an image forming portion that forms an image on a recording material;
• a fixation member;
• a fixing member that has an outer peripheral surface and an inner peripheral surface, is rotatably provided with respect to the fixation member, comes into contact with, of the recording material on which the image is formed, a surface on which the image is formed, and fixes the image to the recording material;
• a rotating member that includes a contact surface, which is in contact with the inner peripheral surface of the fixing member, at an outer peripheral portion, includes a heat generating portion generating heat due to electric resistance, and is rotatable together with the heat generating portion with respect to the fixation member;
• and
• a power receiving member that includes a power receiving surface which receives power from the fixation member with a peripheral surface, has a spring characteristic of biasing the power receiving surface in a radial direction of the fixation member, and rotates together with the rotating member.