61926 bearing: complete specifications & equivalents
The 61926 is a ISO 15 radial bearing sized 130 x 180 x 24 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 130 mm |
| Outer diameter D | 180 mm |
| Width B | 24 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 65 kN |
| Basic static load rating C0 | 67 kN |
| Fatigue load limit Pu | 2.28 kN |
| Reference speed (thermal) | 7500 rpm |
| Limiting speed (mechanical) | 4500 rpm |
| Operating temperature | -40 to +150 °C |
| Mass | 1600 g |
| Manufacturer designation | SKF 61926 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-25 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-24
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 | 5.118 in |
|---|---|
| Outer diameter D | 7.087 in |
| Width B | 0.945 in |
| ISO bore code | 26 |
| Radial section height (D−d)/2 | 25 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) | 32 of 63 |
| Bore above smallest 61900-series size | 127 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 61926-NSK | NSK | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
| 61926-ZZ | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 130×180×24 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 61926-2RS | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 130×180×24 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 61926-NTN | NTN | full Dimensions and internal design equivalent — standard interchange. | Identical ISO 15 envelope, seal and ratings band — standard interchange; re-verify precision class and clearance per supplier. |
| 61926-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 130×180×24 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the 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 61926 model number is decoded
61926 is supplied open, without shields or seals, so the arrangement around it must supply and retain the lubricant. Within the thin 619xx section (diameter series 9 of ISO 15), multiplying bore code 26 by five gives the 130 mm bore; the 180 mm outside diameter and 24 mm width follow the same boundary-dimension plan. For a rotating inner ring on a 130 mm shaft under normal load, catalogue practice seats it on a m6 shaft fit with an H7 housing bore — confirm against the actual load direction and magnitude before committing. In the SKF catalogue this open execution carries the bare designation; protected variants are ordered separately as -2Z and -2RSH.
Typical equipment & failure modes
Common applications
- clutch and transmission assemblies
- robotics and automation joints
- lay shafts and idler shafts
- textile machinery
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- edge loading from shaft deflection or housing misalignment
- rolling-contact fatigue spalling after the rated L10 life is exceeded
Selection pitfalls — read before you substitute
- Mount this 130 mm bore bearing by heating the inner ring (induction heater, max 120 °C) — never drive it home through the outer ring or balls, that brinells the raceways.
- The 619xx thin section at 130 mm bore (25.0 mm section height) cannot shrug off the misalignment a standard section tolerates; keep the housing bores round and aligned, or edge contact will spall the raceways early.
- The open 61926 has no lubricant retention: grease escapes and contaminants migrate straight into the 130×180×24 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Storage matters for open bearings: 61926 leaves the factory with rust preventive only, so clean it and apply the service grease at assembly even if the rings look oily from the wrapper.
- Shaft and housing fillets must clear the bearing chamfer so the 24 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
- Suffixes stack in a defined order — clearance follows the seal code, e.g. 61926-C3. No clearance suffix means normal CN clearance.
- The open 61926 needs external sealing and application-supplied lubrication; in the SKF catalogue the protected variants are separate order numbers 61926-2Z (shields) and 61926-2RSH (contact seals), not suffix-free 61926.
- The 65/67 kN ratings here are SKF Explorer-class figures from catalogue PUB BU/P1 17000/1 EN (Oct 2018); SKF can revise internal geometry and ratings without changing the designation, so treat the catalogue version and date as part of the specification and re-verify for critical drives.
Frequently asked questions
What are the dimensions of a 61926 bearing?
A 61926 deep-groove ball bearing has a 130 mm bore, 180 mm outer diameter and 24 mm width (5.118 × 7.087 × 0.945 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields.
How does the 61926 bore code work?
The last two digits of 61926 are bore code 26, giving 26 × 5 = 130 mm bore. The 180 mm outside diameter and 24 mm width follow the ISO 15 diameter series, not the bore code alone.
What does no suffix on 61926 mean?
A bare 61926 designation means open: no shields or seals, normal CN radial clearance and P0 normal tolerance unless further suffixes are ordered. The application must supply and retain the lubrication.
How does the 61900 compare with other series at the same 130 mm bore?
619 is a thin section one step above 618: 180×24 mm with a 25.0 mm radial section at 130 mm bore; a 6226 on the same bore is substantially larger and more heavily rated.
What is the SKF designation and catalogue data for 61926?
In the SKF Rolling Bearings catalogue this size is listed as 61926 — the open (unsealed) execution, 130×180×24 mm per ISO 15. Quoted values: C 65 kN, C0 67 kN, Pu 2.28 kN, limiting speed 4500 r/min, mass 1600 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 61926.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-25. Read our editorial & correction policy.