61913-2RS bearing: complete specifications & equivalents
The 61913-2RS is a ISO 15 radial bearing sized 65 x 90 x 13 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 65 mm |
| Outer diameter D | 90 mm |
| Width B | 13 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN / C3 available |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 17.4 kN |
| Basic static load rating C0 | 16 kN |
| Fatigue load limit Pu | 0.68 kN |
| Limiting speed (mechanical) | 4300 rpm |
| Operating temperature | -30 to +110 °C |
| Mass | 220 g |
| Manufacturer designation | SKF 61913-2RS1 |
| 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 | 2.559 in |
|---|---|
| Outer diameter D | 3.543 in |
| Width B | 0.512 in |
| ISO bore code | 13 |
| Radial section height (D−d)/2 | 12.5 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) | 21 of 63 |
| Bore above smallest 61900-series size | 62 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 61913-2RS-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. |
| 61913-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 61913-RSR-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 61913-ZZ | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS vs ZZ) — confirm sealing suits the duty. |
| 61913-2RS-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. |
| 61913-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS vs OPEN) — confirm sealing suits the duty. |
| 61913-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS vs RSR) — confirm sealing suits the duty. |
| 61913-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×90×13 mm envelope per ISO 15; seal variant differs (2RS 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 61913-2RS model number is decoded
61913-2RS is closed by two contacting elastomer lips over a lifetime grease fill; the lips add friction, so the speed ceiling sits below the open execution. Within the thin 619xx section (diameter series 9 of ISO 15), multiplying bore code 13 by five gives the 65 mm bore; the 90 mm outside diameter and 13 mm width follow the same boundary-dimension plan. For a rotating inner ring on a 65 mm shaft under normal load, catalogue practice seats it on a k5 shaft fit with an H7 housing bore — confirm against the actual load direction and magnitude before committing. SKF's contact-seal catalogue number is 61913-2RS1 (older text: -2RS1), mapped here from the industry-neutral -2RS spelling.
Typical equipment & failure modes
Common applications
- clutch and transmission assemblies
- robotics and automation joints
- lay shafts and idler shafts
- textile machinery
Known failure patterns
- seal-lip hardening and loss of pre-grease in sustained high-temperature service
- grease-life expiry in the sealed-for-life cavity (no relubrication path)
- 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
- At 65 mm bore, induction heating to roughly 80–100 °C is the clean mounting method; never exceed 120 °C, and hold 61913 against the shaft shoulder while it cools so the ring cannot creep back.
- The 619xx thin section (12.5 mm section height at 65 mm bore) trades load capacity for compactness; stiff, accurately aligned seats are essential or edge loading will spall the raceway early.
- Heat is the enemy of the sealed 61913-2RS: sustained running near the lip temperature limit hardens the rubber, after which grease escapes and dirt tracks in — watch the housing temperature in hot drives.
- Never wash a sealed 61913-2RS in solvent or press it home via the outer ring; solvent destroys the grease thickener and mounting force through the seal deforms the lip.
- Suffixes stack in a defined order — clearance follows the seal code, e.g. 61913-C3. No clearance suffix means normal CN clearance.
- Shaft and housing fillets must clear the bearing chamfer so the 13 mm-wide ring seats square; provide an undercut or withdrawal groove instead of relying on an oversized radius.
- SKF catalogues the contact-sealed version as 61913-2RS1 (older printings may read -2RS1); it is shipped pre-greased and its 4300 r/min limiting speed is set by seal-lip drag and grease life versus the open bearing's 15000 r/min thermal reference speed.
- The 17.4/16 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 61913-2RS bearing?
A 61913-2RS deep-groove ball bearing has a 65 mm bore, 90 mm outer diameter and 13 mm width (2.559 × 3.543 × 0.512 in), per ISO 15 boundary dimensions. It is fitted with two contact rubber seals and is normally pre-greased.
How does the 61900 compare with other series at the same 65 mm bore?
619 is a thin section one step above 618: 90×13 mm with a 12.5 mm radial section at 65 mm bore; a 6213 on the same bore is substantially larger and more heavily rated.
Are 61913 bearings from different brands interchangeable?
For boundary dimensions, yes: every brand's 61913 uses the same ISO 15 envelope (65×90×13 mm). Load ratings, limiting speeds, clearance, precision class and sealing design can differ, so verify those in the supplier catalogue when substituting. Seal suffixes also differ by brand (2RS, DDU, LLU, 2RSL and similar).
What internal clearance does 61913-2RS have?
Unless a clearance suffix says otherwise, 61913-2RS 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 61913 and verify the residual clearance after mounting.
What is the SKF designation and catalogue data for 61913-2RS?
In the SKF Rolling Bearings catalogue this size is listed as 61913-2RS1 — two contact elastomer seals over a lifetime grease fill, 65×90×13 mm per ISO 15. Quoted values: C 17.4 kN, C0 16 kN, Pu 0.68 kN, limiting speed 4300 r/min, mass 220 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 61913-2RS.
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.