6005-ZZ bearing: complete specifications & equivalents
The 6005-ZZ is a ISO 15 radial bearing sized 25 x 47 x 12 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 | 25 mm |
| Outer diameter D | 47 mm |
| Width B | 12 mm |
| Material | GCr15 |
| Seal / shield | ZZ |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 11.9 kN |
| Basic static load rating C0 | 6.55 kN |
| Fatigue load limit Pu | 0.275 kN |
| Reference speed (thermal) | 32000 rpm |
| Limiting speed (mechanical) | 16000 rpm |
| Operating temperature | -30 to +120 °C |
| Mass | 83 g |
| Manufacturer designation | SKF 6005-2Z |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-25 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-24
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 | 0.984 in |
|---|---|
| Outer diameter D | 1.85 in |
| Width B | 0.472 in |
| ISO bore code | 05 |
| Radial section height (D−d)/2 | 11 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) | 12 of 61 |
| Bore above smallest 6000-series size | 21 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6005-2RS-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; seal variant differs (ZZ vs 2RS) — confirm sealing suits the duty. |
| 6005-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; seal variant differs (ZZ vs OPEN) — confirm sealing suits the duty. |
| 6005-ZZ-FAG | FAG | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
| 6005 | 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 before substituting. |
| 6005-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; seal variant (ZZ vs 2RS) and load ratings differ — confirm sealing and rating before substituting. |
| 6005-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; seal variant (ZZ vs OPEN) and load ratings differ — confirm sealing and rating before substituting. |
| 6005-RSR-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; seal variant (ZZ vs RSR) and load ratings differ — confirm sealing and rating before substituting. |
| 6005-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 25×47×12 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| W6005-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6005-2RS1 shares the 25×47×12 mm envelope but rates differently (11.9/6.55 kN vs 8.71/5.85 kN) — not a load-rating equivalent. |
| W6005-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6005-2Z shares the 25×47×12 mm envelope but rates differently (11.9/6.55 kN vs 8.71/5.85 kN) — not a load-rating equivalent. |
| W6005 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6005 shares the 25×47×12 mm envelope but rates differently (11.9/6.55 kN vs 8.71/5.85 kN) — 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 6005-ZZ model number is decoded
In the 6000-series (diameter series 0 of ISO 15) the last two digits encode the bore: 6005 carries bore code 05 = 25 mm. Outside diameter 47 mm and width 12 mm come from the ISO 15 boundary-dimensions general plan. Suffix -ZZ denotes two non-contact metallic shields; they retain grease and block coarse debris but are not liquid-tight. For normal-load mounting with a rotating inner ring on a 25 mm shaft, typical catalogue practice is a k5 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. SKF's own suffix is 2Z (this page's industry-neutral spelling is -ZZ); catalogue number 6005-2Z.
Typical equipment & failure modes
Common applications
- centrifugal pumps
- small gearboxes
- conveyors and drives
- agricultural equipment
Known failure patterns
- fine-particle abrasion when non-contact shields let dust past in dirty duty
- grease aging in the shield-for-life cavity with no relubrication path
- false brinelling from vibration while the shaft is stationary
- fretting corrosion on a loose shaft seat
Selection pitfalls — read before you substitute
- Sizes around 25 mm bore are normally pressed on cold with a sleeve against the inner-ring face; the press force must never route through the outer ring or the balls of 6005-ZZ.
- Choosing the 60xx extra-light section saves radial space at 25 mm bore, but the trade-off is rating: if the drive sees shock or frequent start-stop cycles, re-check the L10 life against a 6205 before committing to the smaller envelope.
- Do not wash 6005-ZZ in solvent before mounting: the grease inside the shielded cavity is the service fill, and solvent creeping past the shield gap strips it out.
- Shielded 6005-ZZ units are typically greased for life; prying the shields out for regreasing usually bends them and leaves a gap that throws grease in service.
- Never mix components between two 6005-ZZ units: rings, cage and balls are factory-matched and are not field-interchangeable, even between identical designations.
- Axial location must clamp the ring face, not the seal area: a shoulder or circlip bearing on the seal side of the 12 mm-wide ring of 6005-ZZ drags the lip and overheats it.
- SKF spells the shielded version 6005-2Z (one shield: 6005-Z), not "-ZZ": the suffix language differs by brand even though the ISO envelope is identical, so quote the brand designation when ordering.
- The single-shield execution 6005-Z is a distinct order number in catalogue 17000: it suits open gears or oil-bath arrangements where the unshielded face faces the lubricant, and it is not interchangeable with the double-shield 6005-2Z for high-contamination positions.
- The 11.9/6.55 kN ratings here are SKF Explorer-class figures from catalogue PUB BU/P1 17000/1 EN (Oct 2018); SKF can revise internal geometry and ratings without changing the designation, so treat the catalogue version and date as part of the specification and re-verify for critical drives.
Frequently asked questions
What are the dimensions of a 6005-ZZ bearing?
A 6005-ZZ deep-groove ball bearing has a 25 mm bore, 47 mm outer diameter and 12 mm width (0.984 × 1.85 × 0.472 in), per ISO 15 boundary dimensions. It is fitted with two non-contact metallic shields.
How does the 6000 compare with other series at the same 25 mm bore?
The second digit is the diameter series: 60 is the smallest standard section (47×12 mm, 11.0 mm radial section) at 25 mm bore — below 62/63/64 in load capacity, for light loads in compact spaces.
Are 6005 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 6005 uses the same ISO 15 envelope (25×47×12 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting. Seal suffixes also differ by brand (2RS, DDU, LLU, 2RSL and similar).
What internal clearance does 6005-ZZ have?
Unless a clearance suffix says otherwise, 6005-ZZ is manufactured to normal (CN) radial internal clearance. Tight fits and hot shafts consume clearance in service — for those conditions order the C3 execution of 6005 and verify the residual clearance after mounting.
What is the SKF designation and catalogue data for 6005-ZZ?
In the SKF Rolling Bearings catalogue this size is listed as 6005-2Z — two non-contact sheet-metal shields, 25×47×12 mm per ISO 15. Quoted values: C 11.9 kN, C0 6.55 kN, Pu 0.275 kN, limiting speed 16000 r/min, mass 83 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6005-ZZ.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-25. Read our editorial & correction policy.