6020 bearing: complete specifications & equivalents
The 6020 is a ISO 15 radial bearing sized 100 x 150 x 24 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 100 mm |
| Outer diameter D | 150 mm |
| Width B | 24 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 63.7 kN |
| Basic static load rating C0 | 54 kN |
| Fatigue load limit Pu | 2.04 kN |
| Reference speed (thermal) | 9500 rpm |
| Limiting speed (mechanical) | 5600 rpm |
| Operating temperature | -40 to +150 °C |
| Mass | 1250 g |
| Manufacturer designation | SKF 6020 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-24 |
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 | 3.937 in |
|---|---|
| Outer diameter D | 5.906 in |
| Width B | 0.945 in |
| ISO bore code | 20 |
| Radial section height (D−d)/2 | 25 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) | 27 of 61 |
| Bore above smallest 6000-series size | 96 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6020 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier. |
| 6020-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 100×150×24 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 6020-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. |
| 6020-RSR | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 100×150×24 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 6020-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 100×150×24 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 6020-M | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 6020 M (machined brass cage, open arrangement) is the same-size execution on the 100×150×24 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 6020 model number is decoded
In the 6000-series (diameter series 0 of ISO 15) the last two digits encode the bore: 6020 carries bore code 20 = 100 mm. Outside diameter 150 mm and width 24 mm come from the ISO 15 boundary-dimensions general plan. With no seal suffix the bearing is open: no shields or seals are fitted and lubrication is supplied by the application. For normal-load mounting with a rotating inner ring on a 100 mm shaft, typical catalogue practice is a k5 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. In the SKF catalogue this open execution carries the bare designation; protected variants are ordered separately as -2Z and -2RSH.
Typical equipment & failure modes
Common applications
- hoists and winches
- heavy conveyors
- pulp and paper machinery
- medium and heavy industrial drives
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- electrical pitting in VFD-driven motors without grounding protection
- raceway smearing under marginal lubrication at start-up
Selection pitfalls — read before you substitute
- Mount this 100 mm bore bearing by heating the inner ring (induction heater, max 120 °C) — never drive it home through the outer ring or balls, that brinells the raceways.
- The 60xx extra-light section at 100 mm bore uses a smaller 150 mm OD than a 6220; load ratings are lower, so do not replace a failed 62-series bearing with a 60-series without re-rating the load.
- The open 6020 has no lubricant retention: grease escapes and contaminants migrate straight into the 100×150×24 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Storage matters for open bearings: 6020 leaves the factory with rust preventive only, so clean it and apply the service grease at assembly even if the rings look oily from the wrapper.
- Assign fits by which ring rotates: an interference shaft fit for a rotating inner ring; if the outer ring rotates instead, reverse the logic — a loose rotating ring creeps and frets its seat.
- Suffixes stack in a defined order — clearance follows the seal code, e.g. 6020-C3. No clearance suffix means normal CN clearance.
- The open 6020 needs external sealing and application-supplied lubrication; in the SKF catalogue the protected variants are separate order numbers 6020-2Z (shields) and 6020-2RSH (contact seals), not suffix-free 6020.
- The 63.7/54 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 6020 bearing?
A 6020 deep-groove ball bearing has a 100 mm bore, 150 mm outer diameter and 24 mm width (3.937 × 5.906 × 0.945 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields.
How does the 6000 compare with other series at the same 100 mm bore?
The second digit is the diameter series: 60 is the smallest standard section (150×24 mm, 25.0 mm radial section) at 100 mm bore — below 62/63/64 in load capacity, for light loads in compact spaces.
Are 6020 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 6020 uses the same ISO 15 envelope (100×150×24 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting.
What internal clearance does 6020 have?
Unless a clearance suffix says otherwise, 6020 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 6020 and verify the residual clearance after mounting.
What is the SKF designation and catalogue data for 6020?
In the SKF Rolling Bearings catalogue this size is listed as 6020 — the open (unsealed) execution, 100×150×24 mm per ISO 15. Quoted values: C 63.7 kN, C0 54 kN, Pu 2.04 kN, limiting speed 5600 r/min, mass 1250 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6020.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-24. Read our editorial & correction policy.