A sheet conveyance apparatus, including: a rotatable first rotary member; a second rotary member configured to rotate together with the first rotary member to nip and convey a sheet; a rotary member support unit configured to support the first rotary member in a mountable and removable manner, the rotary member support unit being pivotally movable in a direction intersecting with a conveyance direction of the sheet; and a regulating member configured to regulate pivotal movement of the rotary member support unit so that the first rotary member is fitted into a predetermined position of the rotary member support unit when the first rotary member is mounted.