End member, photoreceptor drum unit, developing roller unit, and process cartridge

Grease composition, grease-packed bearing, universal joint for propeller shaft, lubricating oil composition, and oil-impregnated sintered bearing

Sliding bearing and image forming apparatus

Mounting structure for bearing member, fixing device, and image forming apparatus

Conductive roll

Grease composition, grease-packed bearing, universal joint for propeller shaft, lubricating oil composition, and oil-impregnated sintered bearing

Developing device and image forming apparatus