619-7 bearing: complete specifications & equivalents
The 619-7 is a ISO 15 radial bearing sized 7 x 17 x 5 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 7 mm |
| Outer diameter D | 17 mm |
| Width B | 5 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1.06 kN |
| Basic static load rating C0 | 0.375 kN |
| Fatigue load limit Pu | 0.016 kN |
| Reference speed (thermal) | 90000 rpm |
| Limiting speed (mechanical) | 56000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 4.9 g |
| Manufacturer designation | 619/7 |
| 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 | 0.276 in |
|---|---|
| Outer diameter D | 0.669 in |
| Width B | 0.197 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 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) | 5 of 63 |
| Bore above smallest 61900-series size | 4 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 619-7-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 7×17×5 mm envelope and equivalent catalogue ratings; 619/7-2Z is the two non-contact shields execution of this size — boundary dimensions interchangeable, only the seal/shield/cage execution differs. |
| W619-7-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 7×17×5 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (1.06/0.375 kN vs 0.923/0.365 kN) — envelope match, not a load-rating equivalent; choose by corrosion versus load duty. |
| W619-7 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 7×17×5 mm envelope, but the stainless and chrome-steel executions carry different catalogue ratings (1.06/0.375 kN vs 0.923/0.365 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 619-7 model number is decoded
In the miniature 61900-series, the bore is written directly after the slash as 7 mm (bores below 10 mm use the slash spelling). The envelope is 7×17×5 mm (0.276×0.669×0.197 in) with a 5.0 mm radial section height, C 1.06 kN, C0 0.375 kN and Pu 0.016 kN. The open 619/7 carries no shields or seals and relies on application lubrication and external sealing. Limiting speed 56000 r/min, catalogue mass 4.9 g. A thin section saves space but leaves little margin for misalignment or shaft deflection.
Typical equipment & failure modes
Common applications
- textile and packaging machinery
- slew and indexing drives
- industrial electric motors
- gearboxes and speed reducers
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- raceway smearing under marginal lubrication at start-up
- electrical pitting in VFD-driven motors without shaft grounding
Selection pitfalls — read before you substitute
- Deep-groove geometry tolerates only minutes of misalignment; if the 17 mm housing bore cannot be aligned, move to a self-aligning bearing rather than shimming 619-7.
- Do not preload 619-7 to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- Open 619-7 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 619-7; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Mount by heating the inner ring (max 120 °C) — driving 619-7 home through the outer ring or balls brinells the raceways.
- The fatigue load limit is 0.016 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 619-7?
The SKF 619/7 measures 7 mm bore × 17 mm OD × 5 mm width (0.276 × 0.669 × 0.197 in), mass about 4.9 g. It is open, with no shields or seals.
Why is there a slash in the designation 619/7?
The slash writes a bore that falls outside the two-digit code table: 619/7 means 7 mm bore. The site slug 619-7 replaces the slash with a hyphen.
What is the speed rating of 619-7?
SKF lists a 90000 r/min thermal reference speed and a 56000 r/min mechanical limiting speed for 619/7; real limits also depend on lubrication and fits.
What is the difference between 619-7 and a same-bore 62-series bearing?
Section height differs: 619-7 has a 5 mm radial section and C 1.06 kN; always match d, D and B — same bore alone never makes two bearings interchangeable.
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.