619-8-ZZ bearing: complete specifications & equivalents
The 619-8-ZZ is a ISO 15 radial bearing sized 8 x 19 x 6 mm (bore x OD x width) with ZZ sealing. 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 | ZZ |
| 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) | 43000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7.1 g |
| Manufacturer designation | 619/8-2Z |
| 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 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 8×19×6 mm envelope and equivalent catalogue ratings; 619/8 is the open arrangement 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-ZZ 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. SKF spells the double shield 619/8-2Z (suffix 2Z); the shields are non-contact, retain grease and block coarse debris but are not liquid-tight. Limiting speed 43000 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
- machine tool auxiliaries
- agricultural gearboxes
- space-constrained gearboxes
- clutch and transmission assemblies
Known failure patterns
- fine-particle abrasion when non-contact shields let dust through in a dirty environment
- grease aging inside the shielded cavity with no relubrication path
- false brinelling from vibration while the shaft stands idle
- fretting corrosion on a creeping shaft or housing seat
Selection pitfalls — read before you substitute
- Clearance suffixes follow the seal code in the designation stack (e.g. 619/8-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
- Clearance suffixes follow the seal code in the designation stack (e.g. 619/8-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
- Shields on 619-8-ZZ are non-contact: chips and coarse dust stay out, but water passes straight through — specify the sealed 619/8-2RS for washdown duty.
- Do not pry the caps off 619-8-ZZ to repack it; shield/seal damage leaves a gap that throws grease and admits dirt.
- Mount by heating the inner ring (max 120 °C) — driving 619-8-ZZ 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-ZZ?
The SKF 619/8-2Z measures 8 mm bore × 19 mm OD × 6 mm width (0.315 × 0.748 × 0.236 in), mass about 7.1 g. It has two non-contact sheet-metal shields.
Why is there a slash in the designation 619/8-2Z?
The slash writes a bore that falls outside the two-digit code table: 619/8 means 8 mm bore. The site slug 619-8-ZZ replaces the slash with a hyphen.
Which fits should I use for 619-8-ZZ?
With a rotating inner ring use roughly j5/k5 on the shaft and H7 in the 19 mm housing; reverse the interference if the outer ring rotates.
How heavy is 619-8-ZZ?
Catalogue mass is 7.1 g for 619/8-2Z; 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.