6015 bearing: complete specifications & equivalents
The 6015 is a ISO 15 radial bearing sized 75 x 115 x 20 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Bore diameter d | 75 mm |
| Outer diameter D | 115 mm |
| Width B | 20 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 | 41.6 kN |
| Basic static load rating C0 | 33.5 kN |
| Fatigue load limit Pu | 1.43 kN |
| Reference speed (thermal) | 12000 rpm |
| Limiting speed (mechanical) | 7500 rpm |
| Operating temperature | -40 to +150 °C |
| Mass | 650 g |
| Manufacturer designation | SKF 6015 |
| 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 | 2.953 in |
|---|---|
| Outer diameter D | 4.528 in |
| Width B | 0.787 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 20 mm |
| Smallest bore in 6000-series | 10 mm |
| Largest outer diameter in 6000-series | 420 mm |
| Width range across 6000-series | 8–65 mm |
| Bore position in 6000-series (smallest first) | 16 of 35 |
| Bore above smallest 6000-series size | 65 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6015 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 6015 model number is decoded
In the 6000-series (ISO 15 diameter series 0) the last two digits encode the bore: 6015 carries bore code 15 = 75 mm. Outside diameter 115 mm and width 20 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 75 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
- conveyor drives
- material-handling equipment
- industrial fans
- industrial electric motors
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- 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
- Temperature rise and interference fits consume internal clearance on this 75 mm bore: a CN bearing on a tight, hot shaft can lose all residual clearance — size 6015 with C3 for those conditions.
- The 60xx extra-light section at 75 mm bore uses a smaller 115 mm OD than a 6215; load ratings are lower, so do not replace a failed 62-series bearing with a 60-series without re-rating the load.
- The open 6015 has no lubricant retention: grease escapes and contaminants migrate straight into the 75×115×20 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Open bearings tolerate the highest speeds in the 6000-series but need a defined regreasing interval; run-to-failure lubrication is the dominant cause of early failure in open 6015 units.
- 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.
- The open 6015 needs external sealing and application-supplied lubrication; in the SKF catalogue the protected variants are separate order numbers 6015-2Z (shields) and 6015-2RSH (contact seals), not suffix-free 6015.
- The 41.6/33.5 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 6015 bearing?
A 6015 deep-groove ball bearing has a 75 mm bore, 115 mm outer diameter and 20 mm width (2.953 × 4.528 × 0.787 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields. Geometry-based estimated mass is about 609 g for a steel-cage unit; catalogue masses vary slightly with seal and cage design.
How does the 6015 bore code work?
The last two digits of 6015 are bore code 15, giving 15 × 5 = 75 mm bore. The 115 mm outside diameter and 20 mm width follow the ISO 15 diameter series, not the bore code alone.
What does no suffix on 6015 mean?
A bare 6015 designation means open: no shields or seals, normal CN radial clearance and P0 normal tolerance unless further suffixes are ordered. The application must supply and retain the lubrication.
How does the 6000 compare with other series at the same 75 mm bore?
The second digit is the diameter series: 60 is the smallest standard section (115×20 mm, 20.0 mm radial section) at 75 mm bore — below 62/63/64 in load capacity, for light loads in compact spaces.
What is the SKF designation and catalogue data for 6015?
In the SKF Rolling Bearings catalogue this size is listed as 6015 — the open (unsealed) execution, 75×115×20 mm per ISO 15. Quoted values: C 41.6 kN, C0 33.5 kN, Pu 1.43 kN, limiting speed 7500 r/min, mass 650 g. Brand suffixes (2Z, 2RSH) differ from the industry-neutral spelling 6015.
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.