Axial piston engine

An axial piston engine having a centrally located engine shaft, an inclined disc, a plurality of sliding blocks each having a bearing socket, a retaining ring having an inner face, and a shaft ring having a curved outer face, all retaining ring having an inner face, and a shaft ring having a curved outer face, all disposed peripherally about said centrally located engine shaft, and curved outer face contacting said inner face of said retaining ring, wherein said retaining ring has an underside with bearing points lined with a slide-assisting material lining comprising from 9 to 11% wt. Sn, from 8 to 11% wt. Pb, from 0.2 to 1.5% wt. Ni, from 0.1 to 0.3% wt. Fe, from 0.2 to 0.8% wt. Zn, from 0.1 to 0.5% wt. Cd, and from 0.01 to 0.02% wt. Al—.