  We investigate the gravitational form factors of the baryon octet within the
framework of the SU(3) chiral quark-soliton model, considering the effects of
flavor SU(3) symmetry breaking, and the corresponding energy-momentum tensor
distributions. We examine the effects of flavor SU(3) symmetry breaking to the
mass, angular momentum, pressure, and shear force distributions of the baryon
octet. We first find that a heavier baryon is energetically more compact than a
lighter one. For the spin distributions of the baryon octet, they are properly
normalized to their spins and are decomposed into the flavor-singlet axial
charge and the orbital angular momentum even when the flavor SU(3) symmetry is
broken. While the effects of the flavor SU(3) symmetry breaking differently
contribute to the angular momentum distributions for the octet baryons, they
are found to be rather small. The spin and orbital angular momentum almost
equally contribute to the angular momentum distributions for the octet baryons.
We also estimate the effects of the flavor SU(3) symmetry breaking to the
pressure and shear force distributions. Interestingly, even if we include the
effects of the SU(3) flavor symmetry breaking, the shear force distributions
are kept to be positive over $r$. It indicates that the Polyakov & Schweitzer
local stability condition is kept to be intact with the flavor SU(3) symmetry
broken. Lastly, we discuss how much the gravitational form factors vary with
the effects of flavor SU(3) symmetry breaking considered.
