6001-2RS bearing: complete specifications & equivalents
The 6001-2RS is a ISO 15 radial bearing sized 12 x 28 x 8 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 | 12 mm |
| Outer diameter D | 28 mm |
| Width B | 8 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 5.4 kN |
| Basic static load rating C0 | 2.36 kN |
| Fatigue load limit Pu | 0.1 kN |
| Limiting speed (mechanical) | 17000 rpm |
| Operating temperature | -30 to +110 °C |
| Mass | 22 g |
| Manufacturer designation | SKF 6001-2RSH |
| 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 | 0.472 in |
|---|---|
| Outer diameter D | 1.102 in |
| Width B | 0.315 in |
| ISO bore code | 01 |
| Radial section height (D−d)/2 | 8 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) | 8 of 61 |
| Bore above smallest 6000-series size | 8 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6001-2RS-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. |
| 6001-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 6001-ZZ-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| 6001 | 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. |
| 6001-2RS-NSK | NSK | 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. |
| 6001-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 6001-RSR-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 6001-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| 6001-2RS-NTN | NTN | 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. |
| 6001-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 6001-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 6001-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 12×28×8 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| W6001-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6001-2RS1 shares the 12×28×8 mm envelope but rates differently (5.4/2.36 kN vs 4.42/2.36 kN) — not a load-rating equivalent. |
| W6001-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6001-2Z shares the 12×28×8 mm envelope but rates differently (5.4/2.36 kN vs 4.42/2.36 kN) — not a load-rating equivalent. |
| W6001 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 6001 shares the 12×28×8 mm envelope but rates differently (5.4/2.36 kN vs 4.42/2.36 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 6001-2RS model number is decoded
In the 6000-series (diameter series 0 of ISO 15) the last two digits encode the bore: 6001 carries bore code 01 = 12 mm. Codes 00–03 follow the 10/12/15/17 mm exception table rather than code × 5. Outside diameter 28 mm and width 8 mm come from the ISO 15 boundary-dimensions general plan. Suffix -2RS denotes two contact-type elastomer seals over a lifetime grease fill; the sealing lips add drag compared with open or shielded versions. For normal-load mounting with a rotating inner ring on a 12 mm shaft, typical catalogue practice is a j5 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. SKF's contact-seal catalogue number is 6001-2RSH (older text: -2RS1), mapped here from the industry-neutral -2RS spelling.
Typical equipment & failure modes
Common applications
- power tools
- small fans and blowers
- garden equipment
- instrument drives
Known failure patterns
- seal-lip hardening and loss of pre-grease in sustained high-temperature service
- grease-life expiry in the sealed-for-life cavity (no relubrication path)
- edge loading from shaft deflection or housing misalignment
- rolling-contact fatigue spalling after the rated L10 life is exceeded
Selection pitfalls — read before you substitute
- Codes 00–03 are the exception series: 6001 takes its 12 mm bore from the 10/12/15/17 mm table, so two designations only a few millimetres apart can read alike on paper — order by measured shaft size, not by code arithmetic.
- Choosing the 60xx extra-light section saves radial space at 12 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 6201 before committing to the smaller envelope.
- Contact seals add drag and heat: 6001-2RS runs slower and cooler-limited than the open 6001; rubber lips are generally limited to roughly 80–110 °C continuous depending on grease, and C3 clearance is the common hot-duty choice.
- Heat is the enemy of the sealed 6001-2RS: sustained running near the lip temperature limit hardens the rubber, after which grease escapes and dirt tracks in — watch the housing temperature in hot drives.
- Shaft and housing fillets must clear the bearing chamfer so the 8 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
- Do not quieten a noisy bearing by preloading it: the 6000-series is a deep-groove design, not angular-contact; axial preload raises temperature and shortens grease life.
- SKF catalogues the contact-sealed version as 6001-2RSH (older printings may read -2RS1); it is shipped pre-greased and its 17000 r/min limiting speed is set by seal-lip drag and grease life versus the open bearing's 60000 r/min thermal reference speed. The single-seal catalogue number is 6001-RSH, used where one shaft side needs external relubrication.
- A one-seal execution 6001-RSH exists for arrangements that lubricate through the open side; fitting 6001-2RSH instead means lifetime grease and no external oil supply — mixing the two in the same shaft can starve the sealed position.
- The 5.4/2.36 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 6001-2RS bearing?
A 6001-2RS deep-groove ball bearing has a 12 mm bore, 28 mm outer diameter and 8 mm width (0.472 × 1.102 × 0.315 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased.
What internal clearance does 6001-2RS have?
Unless a clearance suffix says otherwise, 6001-2RS 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 6001 and verify the residual clearance after mounting.
How should 6001-2RS be mounted?
Apply the mounting force to the ring being fitted: on a 12 mm shaft seat the press load must pass through the inner-ring face only. A fitting sleeve and an arbor press are normally sufficient at this size. Never strike the outer ring, the cage or the seals.
What lubrication does 6001-2RS need?
6001-2RS is supplied pre-greased for life and is not designed to be opened for relubrication; where a relubrication path is required, specify the open 6001 with a housing grease fitting instead.
What is the SKF designation and catalogue data for 6001-2RS?
In the SKF Rolling Bearings catalogue this size is listed as 6001-2RSH — two contact elastomer seals over a lifetime grease fill, 12×28×8 mm per ISO 15. Quoted values: C 5.4 kN, C0 2.36 kN, Pu 0.1 kN, limiting speed 17000 r/min, mass 22 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6001-2RS.
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.