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 |
|---|---|
| Brand | SKF |
| 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 | 2026-09-25 |
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 | 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 | 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) | 22 of 61 |
| Bore above smallest 6000-series size | 71 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; standard interchange — confirm clearance class and precision with the supplier. |
| 6015-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 6015-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. |
| 6015-RSR-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 6015-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 6015-2RS-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 6015-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. |
| 6015-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 6015-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×115×20 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 6015-M | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 6015 M (machined brass cage, open arrangement) is the same-size execution on the 75×115×20 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 6015 model number is decoded
6015 is supplied open, without shields or seals, so the arrangement around it must supply and retain the lubricant. Within the extra-light 60xx section (diameter series 0 of ISO 15), multiplying bore code 15 by five gives the 75 mm bore; the 115 mm outside diameter and 20 mm width follow the same boundary-dimension plan. For a rotating inner ring on a 75 mm shaft under normal load, catalogue practice seats it on a k5 shaft fit with an H7 housing bore — confirm against the actual load direction and magnitude before committing. 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
- Interference on a 75 mm shaft plus running heat consumes radial clearance: where the shaft runs hot or the fit is tight, order 6015 with C3 clearance and re-check the residual value after mounting.
- Choosing the 60xx extra-light section saves radial space at 75 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 6215 before committing to the smaller envelope.
- 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.
- Shaft and housing fillets must clear the bearing chamfer so the 20 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
- 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.
- 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.
What internal clearance does 6015 have?
Unless a clearance suffix says otherwise, 6015 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 6015 and verify the residual clearance after mounting.
How should 6015 be mounted?
Apply the mounting force to the ring being fitted: on a 75 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 6015 need?
The open 6015 is lubricated by the application; a NLGI 2 lithium-soap grease filled to roughly 25–35% of the free volume is the common choice, with a defined relubrication interval.
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, 2RSL) 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 2026-09-25. Read our editorial & correction policy.