6015-M (brass cage) bearing: complete specifications & equivalents
The 6015-M 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 |
| Tolerance class | P0 |
| Cage | brass |
| 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) | 10000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 740 g |
| Manufacturer designation | 6015 M |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27
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 |
|---|---|---|---|
| 6015-2RS-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6015DDU on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-RSR-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6015VV on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-ZZ-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6015ZZ on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6015 on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6015 on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-2RS-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6015LLU on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-RSR-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6015LLB on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015-ZZ-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6015ZZ on the same 75×115×20 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6015 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6015 (open arrangement) shares the 75×115×20 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6015-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6015-2Z (two non-contact shields) shares the 75×115×20 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6015-2RS | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6015-2RS1 (two contact elastomer seals) shares the 75×115×20 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6015-RSR | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6015-2RZ (low-friction non-contact seals) shares the 75×115×20 mm envelope with ratings within 10 % — execution variant of the same size; 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-M model number is decoded
In the 6000-series, the last two digits encode the bore: 6015 carries code 15 = 75 mm (code × 5). The envelope is 75×115×20 mm (2.953×4.528×0.787 in) with a 20.0 mm radial section height, C 41.6 kN, C0 33.5 kN and Pu 1.43 kN. The open 6015 M carries no shields or seals and relies on application lubrication and external sealing. The M suffix identifies the machined brass cage execution, a separate order number from the pressed-steel version. Limiting speed 10000 r/min, catalogue mass 740 g.
Typical equipment & failure modes
Common applications
- industrial electric motors
- gearboxes and speed reducers
- centrifugal and positive-displacement pumps
- material-handling equipment
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- brinelling from static overload or hammer blows during mounting
- false brinelling from vibration while the shaft stands idle
Selection pitfalls — read before you substitute
- Deep-groove geometry tolerates only minutes of misalignment; if the 115 mm housing bore cannot be aligned, move to a self-aligning bearing rather than shimming 6015-M.
- Do not preload 6015-M to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- The M suffix on 6015-M denotes a machined brass cage: it is the choice for high speeds, marginal lubrication and shock/vibration duty, and it is temperature-tolerant where polymer cages are not — the 740 g quoted mass includes the heavier cage.
- Open 6015-M needs external sealing at the arrangement level; in dusty housings its life depends entirely on those external seals and the regreasing schedule.
- Plan a relubrication interval for 6015-M; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Do not preload 6015-M to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- SKF Explorer deep-groove bearings of this size are produced to tight internal-geometry control; rating revisions between catalogue years do not change the designation, so keep the catalogue edition with the machine documentation.
- SKF date-codes its packaging, and greased sealed or shielded bearings carry a finite shelf life: rotate stock first-in-first-out and store boxes dry, cool and away from vibration.
Frequently asked questions
What are the dimensions of 6015-M?
The SKF 6015 M measures 75 mm bore × 115 mm OD × 20 mm width (2.953 × 4.528 × 0.787 in), mass about 740 g. It is open, with no shields or seals.
How does the bore code in 6015 work?
The final two digits of 6015 are bore code 15, multiplied by 5 to give 75 mm.
How long can a greased 6015-M be stored?
Sealed and shielded SKF units carry a finite grease shelf life: SKF recommends first-in-first-out stock rotation and dry, cool, vibration-free storage. Open units ship with rust preventive only and are greased at assembly.
What load can 6015-M take?
Catalogue values for 6015 M: dynamic C 41.6 kN, static C0 33.5 kN, fatigue limit Pu 1.43 kN. Use C in life calculation and C0 for static checks at 75 mm bore.
What is the speed rating of 6015-M?
SKF lists a 12000 r/min thermal reference speed and a 10000 r/min mechanical limiting speed for 6015 M; real limits also depend on lubrication and fits.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.