206 bearing: complete specifications & equivalents
The 206 is a ISO 15 radial bearing sized 30 x 62 x 16 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 30 mm |
| Outer diameter D | 62 mm |
| Width B | 16 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 20.9 kN |
| Basic static load rating C0 | 16.3 kN |
| Fatigue load limit Pu | 0.695 kN |
| Reference speed (thermal) | 20000 rpm |
| Limiting speed (mechanical) | 12000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 210 g |
| Manufacturer designation | 206 |
| 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 & 200-series range
| Bore d | 1.181 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 0.63 in |
| ISO bore code | 06 |
| Radial section height (D−d)/2 | 16 mm |
| Smallest bore in 200-series | 30 mm |
| Largest outer diameter in 200-series | 180 mm |
| Width range across 200-series | 16–34 mm |
| Bore position in 200-series (smallest first) | 1 of 15 |
| Bore above smallest 200-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| W6206-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 30×62×16 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (20.9/16.3 kN vs 16.5/11.2 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| W6206-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 30×62×16 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (20.9/16.3 kN vs 16.5/11.2 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| W6206 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 30×62×16 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (20.9/16.3 kN vs 16.5/11.2 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| 206-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 30×62×16 mm envelope and equivalent catalogue ratings; 206-2Z is the two non-contact shields execution of this size — boundary dimensions interchangeable, only the seal/shield/cage execution differs. |
| 6206 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6206 shares the 30×62×16 mm envelope but catalogue C/C0 differ (20.9/16.3 kN vs 20.3/11.2 kN) — envelope match, not a load-rating equivalent. |
| 6206-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6206-2Z shares the 30×62×16 mm envelope but catalogue C/C0 differ (20.9/16.3 kN vs 20.3/11.2 kN) — envelope match, not a load-rating equivalent. |
| 6206-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6206-2RSH shares the 30×62×16 mm envelope but catalogue C/C0 differ (20.9/16.3 kN vs 20.3/11.2 kN) — envelope match, not a load-rating equivalent. |
| 6206-RSR | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6206-2RZ shares the 30×62×16 mm envelope but catalogue C/C0 differ (20.9/16.3 kN vs 20.3/11.2 kN) — envelope match, not a load-rating equivalent. |
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 206 model number is decoded
206 is a filling-slot (notched-ring) deep-groove bearing in the legacy 200-series: the last two digits encode the bore: 206 carries code 06 = 30 mm (code × 5). The rings carry loading slots that allow extra balls during assembly, which is what gives the 30×62×16 mm envelope its C 20.9 kN and C0 16.3 kN ratings (Pu 0.695 kN). The open 206 carries no shields or seals and relies on application lubrication and external sealing. Limiting speed 12000 r/min, mass 210 g. These bearings are built for high purely-radial loads at moderate speeds.
Typical equipment & failure modes
Common applications
- slew drives
- material-handling winches
- slow heavy gearboxes
- farm machinery and harvesters
Known failure patterns
- spalling of the filling-slot edge when balls are hammered through the slot under heavy thrust loading
- dirt entering through the open slot area when external sealing is neglected
- brinelling from static overload or hammer blows during mounting
- false brinelling from vibration while the shaft stands idle
Selection pitfalls — read before you substitute
- The slots sit at one angular position: on 206, never pass the full radial load across the slot zone during mounting or the ring lip can crack.
- 206 uses the legacy SKF 200/300 numbering (light/heavy filling-slot series), not the modern 6200/6300 spelling; quote 206 exactly when ordering replacements.
- Filling-slot bearings take heavy purely-radial load at moderate speed but little thrust; the 20.9/16.3 kN ratings assume radial loading — use deep-groove 6xxx where axial load matters.
- Shields on 206 retain grease but do not seal against water; for wet farm duty add external lip seals rather than trusting the shield.
- Limiting speed is just 12000 r/min: filling-slot cages and the slot geometry run cooler below that — overspeed drives cage wear and smearing.
- Clearance suffixes follow the seal code in the designation stack (e.g. 206-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
Frequently asked questions
What are the dimensions of 206?
Filling-slot bearing 206 measures 30×62×16 mm (1.181×2.441×0.63 in), about 210 g.
What does the designation 206 mean?
It is the legacy 200/300 filling-slot numbering: series 200 and bore code 06 = 30 mm. Filling-slot bearings predate the 6xxx deep-groove spelling.
What is a filling-slot bearing?
The inner and outer rings each have a loading slot; when aligned, extra balls can be inserted, raising radial rating (C 20.9 kN for 206). The slots also make the rings separable.
Can 206 take axial load?
Very little: the filling slots interrupt the raceway shoulders, so thrust towards the open slot side can unload or jam the balls. Use a standard deep-groove 6xxx bearing for combined loads.
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.