6216 bearing: complete specifications & equivalents
The 6216 is a ISO 15 radial bearing sized 80 x 140 x 26 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 80 mm |
| Outer diameter D | 140 mm |
| Width B | 26 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 | 72.8 kN |
| Basic static load rating C0 | 55 kN |
| Fatigue load limit Pu | 2.2 kN |
| Reference speed (thermal) | 9500 rpm |
| Limiting speed (mechanical) | 6000 rpm |
| Operating temperature | -40 to +150 °C |
| Mass | 1450 g |
| Manufacturer designation | SKF 6216 |
| 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 & 6200-series range
| Bore d | 3.15 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.024 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 30 mm |
| Smallest bore in 6200-series | 3 mm |
| Largest outer diameter in 6200-series | 540 mm |
| Width range across 6200-series | 2.5–85 mm |
| Bore position in 6200-series (smallest first) | 25 of 45 |
| Bore above smallest 6200-series size | 77 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6216 | 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. |
| 6216-2RS-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 6216-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. |
| 6216-RSR | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 6216-ZZ-NSK | NSK | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 6216-2RS-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs 2RS) — confirm sealing suits the duty. |
| 6216-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. |
| 6216-RSR-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs RSR) — confirm sealing suits the duty. |
| 6216-ZZ-NTN | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×140×26 mm envelope per ISO 15; seal variant differs (OPEN vs ZZ) — confirm sealing suits the duty. |
| 7216 | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | — |
| NU216 | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | — |
| 6216-M | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF 6216 M (machined brass cage, open arrangement) is the same-size execution on the 80×140×26 mm envelope with ratings within 10 % — boundary dimensions interchangeable. |
| 216 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF 216 shares the 80×140×26 mm envelope but catalogue C/C0 differ — envelope match only after a load check. |
| 216-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | SKF 216-2Z shares the 80×140×26 mm envelope but catalogue C/C0 differ — envelope match only after a load check. |
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 6216 model number is decoded
In the 6200-series (diameter series 2 of ISO 15) the last two digits encode the bore: 6216 carries bore code 16 = 80 mm. Outside diameter 140 mm and width 26 mm come from the ISO 15 boundary-dimensions general plan. With no seal suffix the bearing is open: no shields or seals are fitted and lubrication is supplied by the application. For normal-load mounting with a rotating inner ring on a 80 mm shaft, typical catalogue practice is a k5 shaft seat with an H7 housing bore — verify against the actual load direction and magnitude. 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
- medium and heavy industrial drives
- large gearboxes
- industrial fans and blowers
- hoists and winches
Known failure patterns
- contamination wear from dust and dirt ingress through the open arrangement
- lubricant starvation when no regreasing interval is maintained
- brinelling from static overload or hammering during mounting
- false brinelling from vibration while the shaft is stationary
Selection pitfalls — read before you substitute
- Mount this 80 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.
- At 80 mm bore the 62xx light series is the workhorse section; its 140×26 mm envelope is what most motor and gearbox seats are machined for, so any alternative section must be checked against both this OD and this width, not the bore alone.
- The open 6216 has no lubricant retention: grease escapes and contaminants migrate straight into the 80×140×26 mm raceway, so specify a sealed arrangement for dusty or washdown duty.
- Open bearings tolerate the highest speeds in the 6200-series but need a defined regreasing interval; run-to-failure lubrication is the dominant cause of early failure in open 6216 units.
- Suffixes stack in a defined order — clearance follows the seal code, e.g. 6216-C3. No clearance suffix means normal CN clearance.
- Axial location must clamp the ring face, not the seal area: a shoulder or circlip bearing on the seal side of the 26 mm-wide ring of 6216 drags the lip and overheats it.
- The open 6216 needs external sealing and application-supplied lubrication; in the SKF catalogue the protected variants are separate order numbers 6216-2Z (shields) and 6216-2RSH (contact seals), not suffix-free 6216.
- The 72.8/55 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 6216 bearing?
A 6216 deep-groove ball bearing has a 80 mm bore, 140 mm outer diameter and 26 mm width (3.15 × 5.512 × 1.024 in), per ISO 15 boundary dimensions. It is an open bearing with no seals or shields.
How does the 6216 bore code work?
The last two digits of 6216 are bore code 16, giving 16 × 5 = 80 mm bore. The 140 mm outside diameter and 26 mm width follow the ISO 15 diameter series, not the bore code alone.
What does no suffix on 6216 mean?
A bare 6216 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 6200 compare with other series at the same 80 mm bore?
The '2' is the light diameter series: 140×26 mm with a 30.0 mm radial section at 80 mm bore. A 6316 on the same bore is larger and higher-rated; a 6016 is smaller and lower-rated.
What is the SKF designation and catalogue data for 6216?
In the SKF Rolling Bearings catalogue this size is listed as 6216 — the open (unsealed) execution, 80×140×26 mm per ISO 15. Quoted values: C 72.8 kN, C0 55 kN, Pu 2.2 kN, limiting speed 6000 r/min, mass 1450 g. Brand suffixes (2Z, 2RSH, 2RSL) differ from the industry-neutral spelling 6216.
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.