6024-2RS bearing: complete specifications & equivalents

The 6024-2RS is a ISO 15 radial bearing sized 120 x 180 x 28 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 NTN catalogues: d/D/B agree within 0.5 mm, dynamic/static ratings within 8.9%. Checked 2026-09-25.
Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 180 mm d = 120 B = 28 mm side section front view
Principal dimensions: bore d 120 mm, outer diameter D 180 mm, width B 28 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 120 mm
Outer diameter D 180 mm
Width B 28 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 88.4 kN
Basic static load rating C0 80 kN
Fatigue load limit Pu 2.75 kN
Limiting speed (mechanical) 2200 rpm
Operating temperature -30 to +110 °C
Mass 2150 g
Manufacturer designation SKF 6024-2RS1
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 d4.724 in
Outer diameter D7.087 in
Width B1.102 in
ISO bore code24
Radial section height (D−d)/230 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)30 of 61
Bore above smallest 6000-series size116 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
6024 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.
6024-2RS-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.
6024-NSK NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty.
6024-RSR NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty.
6024-ZZ-NSK NSK partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty.
6024-2RS-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.
6024-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty.
6024-RSR-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty.
6024-ZZ-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 120×180×28 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty.
6024-MA SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 6024 MA (machined brass cage, open arrangement) is the same-size execution on the 120×180×28 mm envelope with ratings within 10 % — boundary dimensions interchangeable.

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 6024-2RS model number is decoded

In the 6000-series (diameter series 0 of ISO 15) the last two digits encode the bore: 6024 carries bore code 24 = 120 mm. Outside diameter 180 mm and width 28 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 120 mm shaft, typical catalogue practice is a m6 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. SKF's contact-seal catalogue number is 6024-2RS1 (older text: -2RS1), mapped here from the industry-neutral -2RS spelling.

Typical equipment & failure modes

Common applications

  • large gearboxes
  • industrial fans and blowers
  • hoists and winches
  • heavy conveyors

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)
  • raceway smearing under marginal lubrication at start-up
  • edge loading from shaft deflection or housing misalignment

Selection pitfalls — read before you substitute

  • Large bores like the 120 mm of 6024-2RS demand clean, burr-free seats; one raised burr under a ring this size cocks the bearing and concentrates load at the raceway edge, cutting life drastically.
  • Choosing the 60xx extra-light section saves radial space at 120 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 6224 before committing to the smaller envelope.
  • Contact seals add drag and heat: 6024-2RS runs slower and cooler-limited than the open 6024; 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 6024-2RS: 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.
  • Suffixes stack in a defined order — clearance follows the seal code, e.g. 6024-C3. No clearance suffix means normal CN clearance.
  • A 120 mm bore listing showing the right d/D/B but no standard or precision-class reference may be a loose-tolerance import; measure bore/OD spread before fitting it to a machined shaft.
  • SKF catalogues the contact-sealed version as 6024-2RS1 (older printings may read -2RS1); it is shipped pre-greased and its 2200 r/min limiting speed is set by seal-lip drag and grease life versus the open bearing's 7500 r/min thermal reference speed. The single-seal catalogue number is 6024-RS1, used where one shaft side needs external relubrication.
  • A one-seal execution 6024-RS1 exists for arrangements that lubricate through the open side; fitting 6024-2RS1 instead means lifetime grease and no external oil supply — mixing the two in the same shaft can starve the sealed position.
  • The 88.4/80 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 6024-2RS bearing?

A 6024-2RS deep-groove ball bearing has a 120 mm bore, 180 mm outer diameter and 28 mm width (4.724 × 7.087 × 1.102 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased.

How should 6024-2RS be mounted?

Apply the mounting force to the ring being fitted: on a 120 mm shaft seat the press load must pass through the inner-ring face only. Induction heating of the inner ring (max 120 °C) is the clean method at this size. Never strike the outer ring, the cage or the seals.

What lubrication does 6024-2RS need?

6024-2RS is supplied pre-greased for life and is not designed to be opened for relubrication; where a relubrication path is required, specify the open 6024 with a housing grease fitting instead.

How does the 6024 bore code work?

The last two digits of 6024 are bore code 24, giving 24 × 5 = 120 mm bore. The 180 mm outside diameter and 28 mm width follow the ISO 15 diameter series, not the bore code alone.

What is the SKF designation and catalogue data for 6024-2RS?

In the SKF Rolling Bearings catalogue this size is listed as 6024-2RS1 — two contact elastomer seals over a lifetime grease fill, 120×180×28 mm per ISO 15. Quoted values: C 88.4 kN, C0 80 kN, Pu 2.75 kN, limiting speed 2200 r/min, mass 2150 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6024-2RS.

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.