
Koyo K55X63X20 needle roller and cage assembly
Koyo K55X63X20 needle roller and cage assembly: roller bore diameter Fw 55 mm, width 20 mm, basic dynamic load rating Cr 40.3 kN; cross-references: IKO KT556320C3, INA K55X63X20B.
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 | 55 mm |
|---|---|
| Width | 20 mm |
| Basic dynamic load rating Cr | 40.3 kN |
| Shaft diameter | 55 mm |
| Roller outside diameter Ew | 63 mm |
| Basic static load rating C0r | 73.5 kN |
| Limiting speed, grease lubrication | 5000 min-1 |
| Limiting speed, oil lubrication | 7800 min-1 |
| Mass | 0.072 kg |
| Product type | Radial needle roller and cage assemblies, metric series |
All specifications: Verifiedprinted in Koyo’s own catalogue
Cross-references
| Part | Manufacturer | Relationship | Evidence | |
|---|---|---|---|---|
| KT556320C3 | IKO | Dimensional interchange | Single sourcestated by Koyo; not corroborated | |
| K55X63X20B | 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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