6030-2RS bearing: complete specifications & equivalents
The 6030-2RS is a ISO 15 radial bearing sized 150 x 225 x 35 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 | 150 mm |
| Outer diameter D | 225 mm |
| Width B | 35 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 | 125 kN |
| Basic static load rating C0 | 125 kN |
| Fatigue load limit Pu | 3.9 kN |
| Limiting speed (mechanical) | 1700 rpm |
| Operating temperature | -30 to +110 °C |
| Mass | 4350 g |
| Manufacturer designation | SKF 6030-2RS1 |
| 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 d | 5.906 in |
|---|---|
| Outer diameter D | 8.858 in |
| Width B | 1.378 in |
| ISO bore code | 30 |
| Radial section height (D−d)/2 | 37.5 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) | 33 of 61 |
| Bore above smallest 6000-series size | 146 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6030-2RS-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. |
| 6030-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 6030-ZZ-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| 6030 | 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. |
| 6030-2RS-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. |
| 6030-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 6030-RSR | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 6030-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| 6030-2RS-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting. |
| 6030-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant (2RS vs OPEN) and load ratings differ — confirm sealing and rating before substituting. |
| 6030-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 150×225×35 mm envelope per ISO 15; seal variant (2RS vs ZZ) and load ratings differ — confirm sealing and rating before substituting. |
| 6030-M | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 6030 M (machined brass cage, open arrangement) is the same-size execution on the 150×225×35 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 6030-2RS model number is decoded
6030-2RS is closed by two contacting elastomer lips over a lifetime grease fill; the lips add friction, so the speed ceiling sits below the open execution. Within the extra-light 60xx section (diameter series 0 of ISO 15), multiplying bore code 30 by five gives the 150 mm bore; the 225 mm outside diameter and 35 mm width follow the same boundary-dimension plan. For a rotating inner ring on a 150 mm shaft under normal load, catalogue practice seats it on a m6 shaft fit with an H7 housing bore — confirm against the actual load direction and magnitude before committing. SKF's contact-seal catalogue number is 6030-2RS1 (older text: -2RS1), mapped here from the industry-neutral -2RS spelling.
Typical equipment & failure modes
Common applications
- industrial fans and blowers
- hoists and winches
- heavy conveyors
- pulp and paper machinery
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)
- electrical pitting in VFD-driven motors without grounding protection
- raceway smearing under marginal lubrication at start-up
Selection pitfalls — read before you substitute
- Large bores like the 150 mm of 6030-2RS 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.
- The 60xx extra-light section at 150 mm bore uses a smaller 225 mm OD than a 6230; load ratings are lower, so do not replace a failed 62-series bearing with a 60-series without re-rating the load.
- Heat is the enemy of the sealed 6030-2RS: 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.
- Never wash a sealed 6030-2RS in solvent or press it home via the outer ring; solvent destroys the grease thickener and mounting force through the seal deforms the lip.
- Vibration during standstill brinells the raceways of a 150 mm bearing at ball spacing; if the machine sits idle next to running equipment, turn the shaft over periodically or isolate the arrangement.
- Shaft and housing fillets must clear the bearing chamfer so the 35 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
- SKF catalogues the contact-sealed version as 6030-2RS1 (older printings may read -2RS1); it is shipped pre-greased and its 1700 r/min limiting speed is set by seal-lip drag and grease life versus the open bearing's 6000 r/min thermal reference speed. The single-seal catalogue number is 6030-RS1, used where one shaft side needs external relubrication.
- A one-seal execution 6030-RS1 exists for arrangements that lubricate through the open side; fitting 6030-2RS1 instead means lifetime grease and no external oil supply — mixing the two in the same shaft can starve the sealed position.
- The 125/125 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 6030-2RS bearing?
A 6030-2RS deep-groove ball bearing has a 150 mm bore, 225 mm outer diameter and 35 mm width (5.906 × 8.858 × 1.378 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased.
Are 6030 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 6030 uses the same ISO 15 envelope (150×225×35 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 6030-2RS have?
Unless a clearance suffix says otherwise, 6030-2RS 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 6030 and verify the residual clearance after mounting.
How should 6030-2RS be mounted?
Apply the mounting force to the ring being fitted: on a 150 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 is the SKF designation and catalogue data for 6030-2RS?
In the SKF Rolling Bearings catalogue this size is listed as 6030-2RS1 — two contact elastomer seals over a lifetime grease fill, 150×225×35 mm per ISO 15. Quoted values: C 125 kN, C0 125 kN, Pu 3.9 kN, limiting speed 1700 r/min, mass 4350 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6030-2RS.
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.