2316-K bearing: complete specifications & equivalents
The 2316-K is a ISO 15 radial bearing sized 80 x 170 x 58 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 | 170 mm |
| Width B | 58 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 135 kN |
| Basic static load rating C0 | 49 kN |
| Fatigue load limit Pu | 2.24 kN |
| Reference speed (thermal) | 7000 rpm |
| Limiting speed (mechanical) | 5300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 6100 g |
| Manufacturer designation | 2316 K |
| 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 & 2300-series range
| Bore d | 3.15 in |
|---|---|
| Outer diameter D | 6.693 in |
| Width B | 2.283 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 45 mm |
| Smallest bore in 2300-series | 10 mm |
| Largest outer diameter in 2300-series | 215 mm |
| Width range across 2300-series | 17–73 mm |
| Bore position in 2300-series (smallest first) | 17 of 21 |
| Bore above smallest 2300-series size | 70 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 2316 | 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. |
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 2316-K model number is decoded
The 23xx series is the wide medium-section self-aligning ball bearing (ISO dimension series 23). the last two digits encode the bore: 2316 carries code 16 = 80 mm (code × 5). Envelope 80×170×58 mm (3.15×6.693×2.283 in) with a 45.0 mm radial section height, C 135 kN, C0 49 kN and Pu 2.24 kN. The open 2316 K carries no shields or seals and relies on application lubrication and external sealing. The suffix identifies the glass-fibre-reinforced polyamide 66 cage execution. The K suffix marks a 1:12 tapered bore for direct mounting on a tapered shaft or with an adapter sleeve. Reference (thermal) speed 7000 r/min, limiting speed 5300 r/min, catalogue mass 6100 g.
Typical equipment & failure modes
Common applications
- pump shafts with mild misalignment
- material-handling equipment
- industrial electric motors
- conveyor drum and pulley shafts
Known failure patterns
- lubricant starvation where no regreasing interval is maintained
- contamination wear when the open arrangement is used without adequate external sealing
- incorrect sleeve tightening that leaves the tapered bore loose or over-expanded, changing internal clearance
- adapter-sleeve fretting when the sleeve is not locked against the shaft shoulder
- electrical pitting in VFD-driven motors without shaft grounding
- excessive misalignment loading one ball row heavily and spalling it early
Selection pitfalls — read before you substitute
- Mount 2316-K by heating the inner ring (max 120 °C) on a cylindrical bore — driving it home through the outer ring or balls brinells the raceways.
- Assign interference to the rotating ring: on a 80 mm rotating shaft use a k5 seat with an H7 housing; reverse the logic if the outer ring rotates.
- The K suffix means a 1:12 tapered bore: 2316-K is not a drop-in for the straight-bore version — it needs a tapered shaft or an H-series adapter sleeve.
- The suffix on 2316-K denotes a glass-fibre-reinforced polyamide 66 cage: quiet and light at the 5300 r/min limiting speed, but it softens above roughly 120 °C — check the oil temperature in hot drives.
- Assign interference to the rotating ring: on a 80 mm rotating shaft use a k5 seat with an H7 housing; reverse the logic if the outer ring rotates.
- Catalogue ratings for 2316-K (C 135 kN, C0 49 kN) are SKF figures from PUB BU/P1 17000; geometry revisions can change ratings without changing the designation, so keep the catalogue edition with the specification.
Frequently asked questions
What are the dimensions of 2316-K?
SKF 2316 K measures 80 mm bore × 170 mm OD × 58 mm width (3.15 × 6.693 × 2.283 in), mass about 6100 g. It is open, with no shields or seals.
How does the bore code in 2316 work?
The final two digits of 2316 are bore code 16, multiplied by 5 to give 80 mm.
How much misalignment can 2316-K tolerate?
Self-aligning ball bearings tolerate roughly 2–3° of static misalignment for open executions; sealed 2RS1 variants like 2316-K allow less (about 1°) because the seal lip binds first.
Can 2316-K take axial load?
A self-aligning ball bearing can carry some axial load in addition to radial load, but its axial capacity is lower than an angular-contact bearing of the same envelope. Use it where misalignment, not thrust, is the main requirement.
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.