W6010-ZZ bearing: complete specifications & equivalents
The W6010-ZZ is a ISO 15 radial bearing sized 50 x 80 x 16 mm (bore x OD x width) with ZZ sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 50 mm |
| Outer diameter D | 80 mm |
| Width B | 16 mm |
| Material | SS440C |
| Seal / shield | ZZ |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 19 kN |
| Basic static load rating C0 | 16.6 kN |
| Fatigue load limit Pu | 0.71 kN |
| Reference speed (thermal) | 18000 rpm |
| Limiting speed (mechanical) | 9000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 256 g |
| Manufacturer designation | W 6010-2Z |
| 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 & 6000-series range
| Bore d | 1.969 in |
|---|---|
| Outer diameter D | 3.15 in |
| Width B | 0.63 in |
| ISO bore code | 10 |
| Radial section height (D−d)/2 | 15 mm |
| Smallest bore in 6000-series | 4 mm |
| Largest outer diameter in 6000-series | 1150 mm |
| Width range across 6000-series | 4–155 mm |
| Bore position in 6000-series (smallest first) | 17 of 61 |
| Bore above smallest 6000-series size | 46 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| W6010-2RS | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 50×80×16 mm envelope and equivalent catalogue ratings; W 6010-2RS1 is the two contact elastomer seals execution of this size — boundary dimensions interchangeable, only the seal/shield/cage execution differs. |
| 6010 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6010 shares the 50×80×16 mm envelope but carries different catalogue ratings (19/16.6 kN vs 22.9/16 kN) — the stainless execution is not a load-rating equivalent. |
| 6010-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6010-2Z shares the 50×80×16 mm envelope but carries different catalogue ratings (19/16.6 kN vs 22.9/15.6 kN) — the stainless execution is not a load-rating equivalent. |
| 6010-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6010-2RS1 shares the 50×80×16 mm envelope but carries different catalogue ratings (19/16.6 kN vs 22.9/15.6 kN) — the stainless execution is not a load-rating equivalent. |
| 6010-RSR | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF SKF 6010-2RZ shares the 50×80×16 mm envelope but carries different catalogue ratings (19/16.6 kN vs 22.9/15.6 kN) — the stainless execution is 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 W6010-ZZ model number is decoded
The W prefix denotes SKF stainless steel deep-groove bearings (X108CrMo17 / AISI 440C class rings). In the 6000-series, the last two digits encode the bore: 6010 carries code 10 = 50 mm (code × 5). Envelope 50×80×16 mm (1.969×3.15×0.63 in), C 19 kN, C0 16.6 kN, Pu 0.71 kN; limiting speed 9000 r/min and mass 256 g. SKF spells the double shield W 6010-2Z (suffix 2Z); the shields are non-contact, retain grease and block coarse debris but are not liquid-tight. Stainless is chosen for corrosion and washdown duty, not for extra load — the same-envelope chrome-steel bearing rates higher.
Typical equipment & failure modes
Common applications
- chemical and marine atmospheres
- medical and laboratory devices
- small pumps handling corrosive media
- bicycle and outdoor equipment
Known failure patterns
- surface staining and pitting when even the stainless steel is left unlubricated in salty or acidic duty
- seal and grease failure before the rings corrode in sustained washdown service
- fine-particle abrasion when non-contact shields let dust through in a dirty environment
- grease aging inside the shielded cavity with no relubrication path
Selection pitfalls — read before you substitute
- W-prefix stainless rings (X108CrMo17 / AISI 440C class) resist moisture and weak chemicals but will still rust in chloride-rich or salt-spray duty without protection — W6010-ZZ is not marine-grade stainless.
- The stainless steel is martensitic and MAGNETIC; do not reject W6010-ZZ over magnetism — only austenitic grades are non-magnetic, and those are too soft for bearing raceways.
- Stainless bearings carry lower load ratings than chrome steel of the same envelope: W6010-ZZ is quoted at C 19 kN versus the 16 mm-wide 52100 version — do not swap on dimensions alone.
- Food, pharmaceutical and washdown positions need food-grade grease (e.g. NSF H1 registered) inside W6010-ZZ; standard fill is industrial grease unless specified otherwise.
- Assign interference to the rotating ring: on a conventional shaft-mounted 50 mm position the inner ring rotates, so use a k5/m6 shaft seat with an H7 housing — reverse the logic if the outer ring rotates.
- Do not preload W6010-ZZ to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
Frequently asked questions
What are the dimensions of the stainless W6010-ZZ?
SKF W 6010-2Z measures 50×80×16 mm (1.969×3.15×0.63 in), about 256 g, C 19 kN.
What does the W in W 6010-2Z mean?
W is the SKF prefix for stainless steel deep-groove bearings (rings in X108CrMo17 / AISI 440C class); the rest of the designation follows the normal series and bore rules.
Are W stainless bearings waterproof?
No — the stainless rings resist moisture and weak chemicals far better than 52100 chrome steel, but salt spray, strong chlorides and unlubricated washdown duty can still corrode W6010-ZZ; add seals and food-grade grease for wet positions.
Can I replace a chrome-steel bearing with stainless W6010-ZZ?
The envelope matches, but stainless rates lower (C 19 kN for W 6010-2Z); for corrosive environments that trade-off is intended, for high loads it shortens life.
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.