Koyo NAXK12Z combined needle roller bearing
Koyo NAXK12Z combined needle roller bearing: roller bore diameter Fw 12 mm, outside diameter D 21 mm, width 23 mm; cross-references: IKO NAX1223Z, INA NKX12Z.
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 | 12 mm |
|---|---|
| Outside diameter D | 21 mm |
| Width | 23 mm |
| Basic dynamic load rating Cr | 7.5 kN |
| Shaft diameter | 12 mm |
| Basic static load rating C0r | 8.5 kN |
| Basic dynamic load rating Ca (axial) | 10.7 kN |
| Basic static load rating C0a (axial) | 15.4 kN |
| Limiting speed, oil lubrication | 9000 min-1 |
| Mass | 0.047 kg |
| Product type | Combined needle roller bearings, ball thrust series, metric series |
All specifications: Verifiedprinted in Koyo’s own catalogue
Cross-references
| Part | Manufacturer | Relationship | Evidence | |
|---|---|---|---|---|
| NAX1223Z | IKO | Dimensional interchange | Single sourcestated by Koyo; not corroborated | |
| NKX12Z | 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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