| PU | Polyurethane |
| ECAP | Equal channel angular pressing |
| EP | Extrusion process |
| ECP | Extrusion–cutting process |
| ECGP | Extrusion–cutting groove process |
| CLP | Closed lubricant pockets |
| FEM | Finite element method |
| Al 1050-O | Aluminum alloy 1050-O |
| 95A | Shore hardness 95A |
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