619-8 bearing: complete specifications & equivalents
The 619-8 is a ISO 15 radial bearing sized 8 x 19 x 6 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 8 mm |
| Outer diameter D | 19 mm |
| Width B | 6 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1.46 kN |
| Basic static load rating C0 | 0.465 kN |
| Fatigue load limit Pu | 0.02 kN |
| Reference speed (thermal) | 85000 rpm |
| Limiting speed (mechanical) | 53000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7.1 g |
| Manufacturer designation | 619/8 |
| 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 & 61900-series range
| Bore d | 0.315 in |
|---|---|
| Outer diameter D | 0.748 in |
| Width B | 0.236 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 5.5 mm |
| Smallest bore in 61900-series | 3 mm |
| Largest outer diameter in 61900-series | 1120 mm |
| Width range across 61900-series | 3–118 mm |
| Bore position in 61900-series (smallest first) | 6 of 63 |
| Bore above smallest 61900-series size | 5 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 619-8-2RS | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 8×19×6 mm envelope and equivalent catalogue ratings; 619/8-2RS1 is the two contact elastomer seals execution of this size — boundary dimensions interchangeable, only the seal/shield/cage execution differs. |
| 619-8-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 8×19×6 mm envelope and equivalent catalogue ratings; 619/8-2Z is the two non-contact shields execution of this size — boundary dimensions interchangeable, only the seal/shield/cage execution differs. |
| 607-8-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 8×19×6 mm envelope as SKF 607/8-2Z, but catalogue C/C0 differ (1.46/0.465 kN vs 2.34/0.95 kN) — envelope match only after a load check. |
| W619-8-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 8×19×6 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (1.46/0.465 kN vs 1.25/0.455 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| W619-8-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 8×19×6 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (1.46/0.465 kN vs 1.25/0.455 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| W619-8 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 8×19×6 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (1.46/0.465 kN vs 1.25/0.455 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
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 619-8 model number is decoded
In the miniature 61900-series, the bore is written directly after the slash as 8 mm (bores below 10 mm use the slash spelling). The envelope is 8×19×6 mm (0.315×0.748×0.236 in) with a 5.5 mm radial section height, C 1.46 kN, C0 0.465 kN and Pu 0.02 kN. The open 619/8 carries no shields or seals and relies on application lubrication and external sealing. Limiting speed 53000 r/min, catalogue mass 7.1 g. A thin section saves space but leaves little margin for misalignment or shaft deflection.
Typical equipment & failure modes
Common applications
- material-handling equipment
- industrial fans
- compressor drives
- machine tool auxiliaries
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- rolling-contact fatigue spalling once the catalogue L10 life is exceeded
- brinelling from static overload or hammer blows during mounting
Selection pitfalls — read before you substitute
- Assign interference to the rotating ring: on a conventional shaft-mounted 8 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.
- Mount by heating the inner ring (max 120 °C) — driving 619-8 home through the outer ring or balls brinells the raceways.
- Open 619-8 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 619-8; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Mount by heating the inner ring (max 120 °C) — driving 619-8 home through the outer ring or balls brinells the raceways.
- The fatigue load limit is 0.02 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
Frequently asked questions
What are the dimensions of 619-8?
The SKF 619/8 measures 8 mm bore × 19 mm OD × 6 mm width (0.315 × 0.748 × 0.236 in), mass about 7.1 g. It is open, with no shields or seals.
Why is there a slash in the designation 619/8?
The slash writes a bore that falls outside the two-digit code table: 619/8 means 8 mm bore. The site slug 619-8 replaces the slash with a hyphen.
What load can 619-8 take?
Catalogue values for 619/8: dynamic C 1.46 kN, static C0 0.465 kN, fatigue limit Pu 0.02 kN. Use C in life calculation and C0 for static checks at 8 mm bore.
What is the speed rating of 619-8?
SKF lists a 85000 r/min thermal reference speed and a 53000 r/min mechanical limiting speed for 619/8; 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.