
Koyo RNA49/22 needle roller bearing inner ring
Koyo RNA49/22 needle roller bearing inner ring: roller bore diameter Fw 28 mm, outside diameter D 39 mm, width 17 mm; cross-references: IKO RNA49/22, INA RNA49/22.
Figure © Koyo, clipped unaltered from Koyo Ball & Roller Bearings catalog B2001E-6 — Standard Bearings section (B2001E-6b). It illustrates the product family printed there, which may include other sizes. Removed on request.



Specifications
| Roller bore diameter Fw | 28 mm |
|---|---|
| Outside diameter D | 39 mm |
| Width | 17 mm |
| Basic dynamic load rating Cr | 23.3 kN |
| Shaft diameter | 28 mm |
| Basic static load rating C0r | 29.6 kN |
| Limiting speed, grease lubrication | 10000 min-1 |
| Limiting speed, oil lubrication | 16000 min-1 |
| Mass | 0.059 kg |
| Product type | Heavy-duty needle roller bearings without inner rings, metric series |
All specifications: Verifiedprinted in Koyo’s own catalogue
Cross-references
| Part | Manufacturer | Relationship | Evidence | |
|---|---|---|---|---|
| RNA49/22 | IKO | Dimensional interchange | Single sourcestated by Koyo; not corroborated | |
| RNA49/22 | INA | Dimensional interchange | Single sourcestated by Koyo; not corroborated | |
Koyo: 'Dimensional interchangeability only. This does not imply interchangeable in all respects.' (Metric NRB Interchange Guide p18)
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