Developer carrying member and manufacturing method thereof

A developer carrying member comprising:

• a shaft extending in a predetermined direction;
• a magnet fixed to an outer circumferential surface of the shaft ;
• a sleeve in a cylindrical shape with the shaft as a central axis thereof, the sleeve carrying developer on an outer circumferential surface thereof;
• a flange fixed to an end opening of the sleeve in the predetermined direction and rotatably supported on the shaft, the flange rotating together with the sleeve about the central axis;
• and
• an adhesive that bonds together the sleeve and the flange,
• wherein
• the flange has a fitting portion in a cylindrical shape that is fitted inside the sleeve through the end opening,
• the fitting portion has:
• a first fitting portion that contacts an inner circumferential surface of the sleeve;
• a second fitting portion that has a same outer diameter as the first fitting portion and that contacts the inner circumferential surface of the sleeve at a position closer to the end opening than the first fitting portion;
• and
• a groove portion that is formed between the first fitting portion and the second fitting portion in the predetermined direction and that is recessed in a radial direction with respect to outer circumferential surfaces of the first fitting portion and the second fitting portion,
• the adhesive is disposed in the groove portion,
• the groove portion has a first groove portion and a second groove portion,
• the first groove portion and the second groove portion are formed continuously in this order in the predetermined direction from a first fitting portion side to a second fitting portion side, and
• a height from a bottom surface of the second groove portion to an outer circumferential surface of the first fitting portion is greater than a height from a bottom surface of the first groove portion to the outer circumferential surface of the first fitting portion.