619-630 bearing: complete specifications & equivalents
The 619-630 is a ISO 15 radial bearing sized 630 x 850 x 100 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 630 mm |
| Outer diameter D | 850 mm |
| Width B | 100 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 624 kN |
| Basic static load rating C0 | 1340 kN |
| Fatigue load limit Pu | 21.2 kN |
| Reference speed (thermal) | 1300 rpm |
| Limiting speed (mechanical) | 1100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 160000 g |
| Manufacturer designation | 619/630 |
| 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 | 24.803 in |
|---|---|
| Outer diameter D | 33.465 in |
| Width B | 3.937 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 110 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) | 58 of 63 |
| Bore above smallest 61900-series size | 627 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 619-630 model number is decoded
In the large-bore 61900-series, the bore is written directly after the slash as 630 mm (large thin-section bores use the slash spelling instead of the two-digit code). The envelope is 630×850×100 mm (24.803×33.465×3.937 in) with a 110.0 mm radial section height, C 624 kN, C0 1340 kN and Pu 21.2 kN. The open 619/630 carries no shields or seals and relies on application lubrication and external sealing. Limiting speed 1100 r/min, catalogue mass 160000 g. A thin section saves space but leaves little margin for misalignment or shaft deflection.
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
- brinelling from static overload or hammer blows during mounting
- false brinelling from vibration while the shaft stands idle
Selection pitfalls — read before you substitute
- Deep-groove geometry tolerates only minutes of misalignment; if the 850 mm housing bore cannot be aligned, move to a self-aligning bearing rather than shimming 619-630.
- The fatigue load limit is 21.2 kN; it feeds the equivalent-mean-load check, not the basic life calculation — do not substitute one for the other.
- Open 619-630 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 619-630; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Do not preload 619-630 to silence it: a deep-groove ball bearing is not angular-contact, and axial preload only raises temperature and shortens grease life.
- Clearance suffixes follow the seal code in the designation stack (e.g. 619/630-2Z/C3 in SKF spelling); no suffix means normal CN internal clearance.
Frequently asked questions
What are the dimensions of 619-630?
The SKF 619/630 measures 630 mm bore × 850 mm OD × 100 mm width (24.803 × 33.465 × 3.937 in), mass about 160000 g. It is open, with no shields or seals.
Why is there a slash in the designation 619/630?
The slash writes a bore that falls outside the two-digit code table: 619/630 means 630 mm bore. The site slug 619-630 replaces the slash with a hyphen.
What load can 619-630 take?
Catalogue values for 619/630: dynamic C 624 kN, static C0 1340 kN, fatigue limit Pu 21.2 kN. Use C in life calculation and C0 for static checks at 630 mm bore.
What is the speed rating of 619-630?
SKF lists a 1300 r/min thermal reference speed and a 1100 r/min mechanical limiting speed for 619/630; 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.