6319-M (brass cage) bearing: complete specifications & equivalents
The 6319-M is a ISO 15 radial bearing sized 95 x 200 x 45 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 95 mm |
| Outer diameter D | 200 mm |
| Width B | 45 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 159 kN |
| Basic static load rating C0 | 118 kN |
| Fatigue load limit Pu | 4.15 kN |
| Reference speed (thermal) | 7000 rpm |
| Limiting speed (mechanical) | 6300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7050 g |
| Manufacturer designation | 6319 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 & 6300-series range
| Bore d | 3.74 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 1.772 in |
| ISO bore code | 19 |
| Radial section height (D−d)/2 | 52.5 mm |
| Smallest bore in 6300-series | 2 mm |
| Largest outer diameter in 6300-series | 500 mm |
| Width range across 6300-series | 3–95 mm |
| Bore position in 6300-series (smallest first) | 26 of 40 |
| Bore above smallest 6300-series size | 93 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6319-2RS-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6319DDU on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-RSR | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6319VV on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-ZZ-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6319ZZ on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6319 on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6319 on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-2RS-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6319LLU on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-RSR-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6319LLB on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319-ZZ-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | NTN counterpart 6319ZZ on the same 95×200×45 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 6319 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6319 (open arrangement) shares the 95×200×45 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6319-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6319-2Z (two non-contact shields) shares the 95×200×45 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6319-2RS | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6319-2RS1 (two contact elastomer seals) shares the 95×200×45 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 6319-M model number is decoded
In the 6300-series, the last two digits encode the bore: 6319 carries code 19 = 95 mm (code × 5). The envelope is 95×200×45 mm (3.74×7.874×1.772 in) with a 52.5 mm radial section height, C 159 kN, C0 118 kN and Pu 4.15 kN. The open 6319 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 6300 r/min, catalogue mass 7050 g.
Typical equipment & failure modes
Common applications
- compressor drives
- machine tool auxiliaries
- agricultural gearboxes
- industrial electric motors
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- cage damage from running beyond the limiting speed
- raceway smearing under marginal lubrication at start-up
Selection pitfalls — read before you substitute
- Deep-groove geometry tolerates only minutes of misalignment; if the 200 mm housing bore cannot be aligned, move to a self-aligning bearing rather than shimming 6319-M.
- Clearance suffixes follow the seal code in the designation stack (e.g. 6319-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
- The M suffix on 6319-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 7050 g quoted mass includes the heavier cage.
- Open 6319-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 6319-M; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- The fatigue load limit is 4.15 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- Where two 6319 bearings share one shaft in a preloaded or matched arrangement, order both from the same production lot; catalogue figures describe a single bearing, not a matched set.
- 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.
Frequently asked questions
What are the dimensions of 6319-M?
The SKF 6319 M measures 95 mm bore × 200 mm OD × 45 mm width (3.74 × 7.874 × 1.772 in), mass about 7050 g. It is open, with no shields or seals.
How does the bore code in 6319 work?
The final two digits of 6319 are bore code 19, multiplied by 5 to give 95 mm.
What is the difference between 6319-M and a same-bore 62-series bearing?
Section height differs: 6319-M has a 52.5 mm radial section and C 159 kN; always match d, D and B — same bore alone never makes two bearings interchangeable.
Which fits should I use for 6319-M?
With a rotating inner ring use roughly k5 on the shaft and H7 in the 200 mm housing; reverse the interference if the outer ring rotates.
How heavy is 6319-M?
Catalogue mass is 7050 g for 6319 M; seal and cage executions of the same envelope differ by a few grams.
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.