63009-2RS bearing: complete specifications & equivalents
The 63009-2RS is a ISO 15 radial bearing sized 45 x 75 x 23 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 45 mm |
| Outer diameter D | 75 mm |
| Width B | 23 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 20.8 kN |
| Basic static load rating C0 | 14.6 kN |
| Fatigue load limit Pu | 0.64 kN |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 360 g |
| Manufacturer designation | 63009-2RS1 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 63000-series range
| Bore d | 1.772 in |
|---|---|
| Outer diameter D | 2.953 in |
| Width B | 0.906 in |
| ISO bore code | 09 |
| Radial section height (D−d)/2 | 15 mm |
| Smallest bore in 63000-series | 10 mm |
| Largest outer diameter in 63000-series | 80 mm |
| Width range across 63000-series | 12–23 mm |
| Bore position in 63000-series (smallest first) | 10 of 11 |
| Bore above smallest 63000-series size | 35 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 63009 | ISO 15 | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | ISO 15 boundary-dimension envelope; seal suffix convention varies by brand (2RS / DDU / LLU / 2RSR) — verify seal design and temperature range. Brand-specific OEM equivalents pending multi-source data. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 63009-2RS model number is decoded
The 63000-series is the wide-section counterpart of the standard deep-groove family (extra width code built into the designation); the last two digits encode the bore: 63009 carries code 09 = 45 mm (code × 5). The envelope is 45×75×23 mm (1.772×2.953×0.906 in) with a 15.0 mm radial section height, C 20.8 kN, C0 14.6 kN and Pu 0.64 kN. SKF catalogues the sealed execution as 63009-2RS1: two contact elastomer lips (2RS1/2RSH spelling) over a lifetime grease fill; the lips add drag, and no reference (thermal) speed is published. Limiting speed 5600 r/min, catalogue mass 360 g.
Typical equipment & failure modes
Common applications
- industrial fans
- compressor drives
- machine tool auxiliaries
- agricultural gearboxes
Known failure patterns
- contact-seal lip hardening and pre-grease loss after long high-temperature service
- grease-life expiry inside the sealed-for-life cavity, which has no relubrication path
- false brinelling from vibration while the shaft stands idle
- fretting corrosion on a creeping shaft or housing seat
Selection pitfalls — read before you substitute
- The fatigue load limit is 0.64 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- Clearance suffixes follow the seal code in the designation stack (e.g. 63009-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
- Contact seals make 63009-2RS slower than the open 63009 (limiting 5600 r/min) and forbid solvent washing, which destroys the lifetime grease.
- Do not pry the caps off 63009-2RS to repack it; shield/seal damage leaves a gap that throws grease and admits dirt.
- Mount by heating the inner ring (max 120 °C) — driving 63009-2RS home through the outer ring or balls brinells the raceways.
- The fatigue load limit is 0.64 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
Frequently asked questions
What are the dimensions of 63009-2RS?
The SKF 63009-2RS1 measures 45 mm bore × 75 mm OD × 23 mm width (1.772 × 2.953 × 0.906 in), mass about 360 g. It has two contact rubber seals and a lifetime grease fill.
How does the bore code in 63009 work?
The final two digits of 63009 are bore code 09, multiplied by 5 to give 45 mm.
What load can 63009-2RS take?
Catalogue values for 63009-2RS1: dynamic C 20.8 kN, static C0 14.6 kN, fatigue limit Pu 0.64 kN. Use C in life calculation and C0 for static checks at 45 mm bore.
What is the speed rating of 63009-2RS?
SKF publishes only the 5600 r/min limiting speed for this execution; sealed variants have no thermal reference speed because seal and grease life govern.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.