61900 bearing: complete specifications & equivalents
The 61900 is a ISO 15 radial bearing sized 10 x 22 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 | 10 mm |
| Outer diameter D | 22 mm |
| Width B | 6 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 | 2.7 kN |
| Basic static load rating C0 | 1.27 kN |
| Fatigue load limit Pu | 0.054 kN |
| Reference speed (thermal) | 70000 rpm |
| Limiting speed (mechanical) | 45000 rpm |
| Operating temperature | -40 to +150 °C |
| Mass | 10 g |
| Manufacturer designation | SKF 61900 |
| 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 | 0.394 in |
|---|---|
| Outer diameter D | 0.866 in |
| Width B | 0.236 in |
| ISO bore code | 00 |
| Radial section height (D−d)/2 | 6 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) | 8 of 63 |
| Bore above smallest 61900-series size | 7 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 61900-2RS-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 61900-FAG | FAG | 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. |
| 61900-ZZ-FAG | FAG | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant (OPEN vs ZZ) and load ratings differ — confirm sealing and rating before substituting. |
| 61900 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier. |
| 61900-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 61900-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. |
| 61900-RSR | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 61900-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 61900-2RS-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 61900-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. |
| 61900-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 61900-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 10×22×6 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| W61900-2RS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 61900-2RS1 shares the 10×22×6 mm envelope but rates differently (2.7/1.27 kN vs 2.34/1.25 kN) — not a load-rating equivalent. |
| W61900-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 61900-2Z shares the 10×22×6 mm envelope but rates differently (2.7/1.27 kN vs 2.34/1.25 kN) — not a load-rating equivalent. |
| W61900 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF stainless execution W 61900 shares the 10×22×6 mm envelope but rates differently (2.7/1.27 kN vs 2.34/1.25 kN) — not a load-rating equivalent. |
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 61900 model number is decoded
61900 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), its bore code 00 comes from the 10/12/15/17 mm exception table, giving a 10 mm bore; the 22 mm outside diameter and 6 mm width follow the same boundary-dimension plan. For a rotating inner ring on a 10 mm shaft under normal load, catalogue practice seats it on a j5 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
- packaging machinery
- space-constrained gearboxes
- clutch and transmission assemblies
- robotics and automation joints
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- rolling-contact fatigue spalling after the rated L10 life is exceeded
- brinelling from static overload or hammering during mounting
Selection pitfalls — read before you substitute
- Codes 00–03 are the exception series: 61900 takes its 10 mm bore from the 10/12/15/17 mm table, so two designations only a few millimetres apart can read alike on paper — order by measured shaft size, not by code arithmetic.
- The 619xx thin section (6.0 mm section height at 10 mm bore) trades load capacity for compactness; stiff, accurately aligned seats are essential or edge loading will spall the raceway early.
- The open 61900 has no lubricant retention: grease escapes and contaminants migrate straight into the 10×22×6 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Storage matters for open bearings: 61900 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.
- Axial location must clamp the ring face, not the seal area: a shoulder or circlip bearing on the seal side of the 6 mm-wide ring of 61900 drags the lip and overheats it.
- Deep-groove ball bearings tolerate only minutes of misalignment; if the 22 mm housing cannot be aligned, switch to a self-aligning type rather than shimming 61900.
- The open 61900 needs external sealing and application-supplied lubrication; in the SKF catalogue the protected variants are separate order numbers 61900-2Z (shields) and 61900-2RSH (contact seals), not suffix-free 61900.
- The 2.7/1.27 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 61900 bearing?
A 61900 deep-groove ball bearing has a 10 mm bore, 22 mm outer diameter and 6 mm width (0.394 × 0.866 × 0.236 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields.
Are 61900 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 61900 uses the same ISO 15 envelope (10×22×6 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting.
What internal clearance does 61900 have?
Unless a clearance suffix says otherwise, 61900 is manufactured to normal (CN) radial internal clearance. Tight fits and hot shafts consume clearance in service — for those conditions order the C3 execution of 61900 and verify the residual clearance after mounting.
How should 61900 be mounted?
Apply the mounting force to the ring being fitted: on a 10 mm shaft seat the press load must pass through the inner-ring face only. A fitting sleeve and an arbor press are normally sufficient at this size. Never strike the outer ring, the cage or the seals.
What is the SKF designation and catalogue data for 61900?
In the SKF Rolling Bearings catalogue this size is listed as 61900 — the open (unsealed) execution, 10×22×6 mm per ISO 15. Quoted values: C 2.7 kN, C0 1.27 kN, Pu 0.054 kN, limiting speed 45000 r/min, mass 10 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 61900.
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.