6048-M bearing: complete specifications & equivalents
The 6048-M is a ISO 15 radial bearing sized 240 x 360 x 56 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 240 mm |
| Outer diameter D | 360 mm |
| Width B | 56 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 255 kN |
| Basic static load rating C0 | 315 kN |
| Fatigue load limit Pu | 7.8 kN |
| Reference speed (thermal) | 3600 rpm |
| Limiting speed (mechanical) | 3000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 19500 g |
| Manufacturer designation | 6048 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 | 9.449 in |
|---|---|
| Outer diameter D | 14.173 in |
| Width B | 2.205 in |
| ISO bore code | 48 |
| Radial section height (D−d)/2 | 60 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) | 40 of 61 |
| Bore above smallest 6000-series size | 236 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6048 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6048 (open arrangement) shares the 240×360×56 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 6048-M model number is decoded
In the 6000-series, the last two digits encode the bore: 6048 carries code 48 = 240 mm (code × 5). The envelope is 240×360×56 mm (9.449×14.173×2.205 in) with a 60.0 mm radial section height, C 255 kN, C0 315 kN and Pu 7.8 kN. The open 6048 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 3000 r/min, catalogue mass 19500 g.
Typical equipment & failure modes
Common applications
- hoists and winches
- industrial fans and blowers
- mill and kiln auxiliaries
- pulp and paper machinery
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- edge loading from shaft deflection or housing misalignment
- rolling-contact fatigue spalling once the catalogue L10 life is exceeded
Selection pitfalls — read before you substitute
- Assign interference to the rotating ring: on a conventional shaft-mounted 240 mm position the inner ring rotates, so use a k5/m6 shaft seat with an H7 housing — reverse the logic if the outer ring rotates.
- The fatigue load limit is 7.8 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- The M suffix on 6048-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 19500 g quoted mass includes the heavier cage.
- Open 6048-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 6048-M; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Mount by heating the inner ring (max 120 °C) — driving 6048-M home through the outer ring or balls brinells the raceways.
Frequently asked questions
What are the dimensions of 6048-M?
The SKF 6048 M measures 240 mm bore × 360 mm OD × 56 mm width (9.449 × 14.173 × 2.205 in), mass about 19500 g. It is open, with no shields or seals.
How does the bore code in 6048 work?
The final two digits of 6048 are bore code 48, multiplied by 5 to give 240 mm.
What is the difference between 6048-M and a same-bore 62-series bearing?
Section height differs: 6048-M has a 60 mm radial section and C 255 kN; always match d, D and B — same bore alone never makes two bearings interchangeable.
Which fits should I use for 6048-M?
With a rotating inner ring use roughly m6 on the shaft and H7 in the 360 mm housing; reverse the interference if the outer ring rotates.
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.