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.

Dual-source verified Boundary dimensions and basic load ratings cross-checked against the SKF and NSK and FAG and NTN catalogues: d/D/B agree within 0.5 mm, dynamic/static ratings within 8.5%. Checked 2026-09-25.
Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 28 mm d = 12 B = 8 mm side section front view
Principal dimensions: bore d 12 mm, outer diameter D 28 mm, width B 8 mm. Schematic, not to scale.

Specification table

ParameterValue
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 d0.472 in
Outer diameter D1.102 in
Width B0.315 in
ISO bore code01
Radial section height (D−d)/28 mm
Smallest bore in 6000-series4 mm
Largest outer diameter in 6000-series1150 mm
Width range across 6000-series4–155 mm
Bore position in 6000-series (smallest first)8 of 61
Bore above smallest 6000-series size8 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
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.