SKF SIR20ES rod end (spherical plain bearing with threaded eye). Threaded-eye housing with an integrated spherical plain bearing, providing self-alignment on hydraulic-cylinder rod ends, linkage pivots, actuator terminations. Female thread (SI / SIL) or male thread (SA / SAL); left-hand (L suffix) or right-hand thread. Steel-on-steel or steel-on-PTFE-composite raceway. ISO 12240-4 dimensioned.
| Type | Rod end (spherical plain bearing with threaded eye) |
| Designation | SKF SIR20ES |
| HS code | 8483.30 |
| Bore diameter, bearing inner ring | 20 mm |
| Outside diameter, housing eye | 58 mm |
| Width, bearing inner ring | 16 mm |
| Thread designation | M 16x1.5 |
| Width, housing eye | 19.5 mm |
| Centre height, housing (from end of shank) | 50 mm |
| Housing length, total | 81 mm |
| Basic dynamic load rating | 30 kN |
| Basic static load rating | 41.5 kN |
| Sliding contact surface combination | Steel/steel, standard |
| Material, housing | Steel |
| Material, inner ring | Bearing steel |
| Material, outer ring | Bearing steel |
| Maintenance | Relubrication required |
| Attachment feature, rod end shank | Right-hand female thread and clamping screws |
| Sealing | Without |
| Product net weight | 0.417 kg |
| eClass code | 23-05-01-05 |
| UNSPSC code | 31171508 |
| Material | As declared by SKF designation suffix |
| Temperature range | Per SKF product data |
| Primary standard | SKF designation convention |
| MOQ | 1 |
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.