SKF IR50X55X20IS1 needle roller bearing component (inner ring / cage assembly / individual roller). Component supplied separately from the full needle bearing — replacement inner ring (IR series), needle roller and cage assembly (KZK / KBK), stand-alone needle roller, or drawn-cup outer sleeve. Used for shaft-diameter matching or replacement on integrated assemblies. Dimensioned to ISO 3245 / DIN 617.
| Type | Needle roller bearing component (inner ring / cage assembly / individual roller) |
| Designation | SKF IR50X55X20IS1 |
| HS code | 8482.40 |
| Bore diameter | 50 mm |
| Outside diameter | 55 mm |
| Width | 20 mm |
| Raceway diameter | 55 mm |
| Special raceway feature | None |
| Radial internal clearance | CN |
| Tolerance class | Normal |
| Material | Bearing steel |
| Coating | Without |
| Relubrication feature | With |
| Product net weight | 0.063 kg |
| eClass code | 23-05-09-03 |
| UNSPSC code | 31171512 |
| 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.