A rotatable cutting element includes a stationary portion defining a cavity with an inner wall, the inner wall extending at an angle radially away from a longitudinal axis of the stationary portion and defining a retaining region. The rotatable cutting element further includes a rotatable portion having one end thereof disposed in the cavity of the stationary portion and structure for engaging a subterranean formation at an opposing end. The rotatable cutting element also includes a retaining element extending between the rotatable portion and the stationary portion, the retaining element extending into the retaining region defined by the inner wall of the stationary portion.

A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.

A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.

A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.

A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.