63006-2RS bearing: complete specifications & equivalents
The 63006-2RS is a ISO 15 radial bearing sized 30 x 55 x 19 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 | 30 mm |
| Outer diameter D | 55 mm |
| Width B | 19 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 13.3 kN |
| Basic static load rating C0 | 8.3 kN |
| Fatigue load limit Pu | 0.355 kN |
| Limiting speed (mechanical) | 8000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 170 g |
| Manufacturer designation | 63006-2RS1 |
| 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 | 1.181 in |
|---|---|
| Outer diameter D | 2.165 in |
| Width B | 0.748 in |
| ISO bore code | 06 |
| Radial section height (D−d)/2 | 12.5 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) | 7 of 11 |
| Bore above smallest 63000-series size | 20 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 63006 | 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 63006-2RS 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: 63006 carries code 06 = 30 mm (code × 5). The envelope is 30×55×19 mm (1.181×2.165×0.748 in) with a 12.5 mm radial section height, C 13.3 kN, C0 8.3 kN and Pu 0.355 kN. SKF catalogues the sealed execution as 63006-2RS1: 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 8000 r/min, catalogue mass 170 g.
Typical equipment & failure modes
Common applications
- agricultural equipment
- garden machinery
- textile machines
- electric motors
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
- raceway smearing under marginal lubrication at start-up
- electrical pitting in VFD-driven motors without shaft grounding
Selection pitfalls — read before you substitute
- Do not preload 63006-2RS to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- Fillet radii must clear the 63006-2RS chamfer so the 19 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Contact seals make 63006-2RS slower than the open 63006 (limiting 8000 r/min) and forbid solvent washing, which destroys the lifetime grease.
- Do not pry the caps off 63006-2RS to repack it; shield/seal damage leaves a gap that throws grease and admits dirt.
- The fatigue load limit is 0.355 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- Fillet radii must clear the 63006-2RS chamfer so the 19 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
Frequently asked questions
What are the dimensions of 63006-2RS?
The SKF 63006-2RS1 measures 30 mm bore × 55 mm OD × 19 mm width (1.181 × 2.165 × 0.748 in), mass about 170 g. It has two contact rubber seals and a lifetime grease fill.
How does the bore code in 63006 work?
The final two digits of 63006 are bore code 06, multiplied by 5 to give 30 mm.
Which fits should I use for 63006-2RS?
With a rotating inner ring use roughly k5 on the shaft and H7 in the 55 mm housing; reverse the interference if the outer ring rotates.
How heavy is 63006-2RS?
Catalogue mass is 170 g for 63006-2RS1; seal and cage executions of the same envelope differ by a few grams.
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.