62312-2RS bearing: complete specifications & equivalents
The 62312-2RS is a ISO 15 radial bearing sized 60 x 130 x 46 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 | 60 mm |
| Outer diameter D | 130 mm |
| Width B | 46 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 81.9 kN |
| Basic static load rating C0 | 52 kN |
| Fatigue load limit Pu | 2.2 kN |
| Limiting speed (mechanical) | 3400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2550 g |
| Manufacturer designation | 62312-2RS1 |
| 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 & 62300-series range
| Bore d | 2.362 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 1.811 in |
| ISO bore code | 12 |
| Radial section height (D−d)/2 | 35 mm |
| Smallest bore in 62300-series | 10 mm |
| Largest outer diameter in 62300-series | 150 mm |
| Width range across 62300-series | 17–51 mm |
| Bore position in 62300-series (smallest first) | 13 of 15 |
| Bore above smallest 62300-series size | 50 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 4312-ATN9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×46 mm envelope as SKF 4312 ATN9, but catalogue C/C0 differ (81.9/52 kN vs 112/98 kN) — 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 62312-2RS model number is decoded
The 62300-series is the wide-section counterpart of the standard deep-groove family (extra width code built into the designation); the last two digits encode the bore: 62312 carries code 12 = 60 mm (code × 5). The envelope is 60×130×46 mm (2.362×5.118×1.811 in) with a 35.0 mm radial section height, C 81.9 kN, C0 52 kN and Pu 2.2 kN. SKF catalogues the sealed execution as 62312-2RS1: two contact elastomer lips (2RS1/2RSH spelling) over a lifetime grease fill; the lips add drag, and no reference (thermal) speed is published. Limiting speed 3400 r/min, catalogue mass 2550 g.
Typical equipment & failure modes
Common applications
- industrial fans
- compressor drives
- machine tool auxiliaries
- agricultural gearboxes
Known failure patterns
- contact-seal lip hardening and pre-grease loss after long high-temperature service
- grease-life expiry inside the sealed-for-life cavity, which has no relubrication path
- false brinelling from vibration while the shaft stands idle
- fretting corrosion on a creeping shaft or housing seat
Selection pitfalls — read before you substitute
- Catalogue ratings for 62312-2RS (C 81.9 kN, C0 52 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.
- Fillet radii must clear the 62312-2RS chamfer so the 46 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Contact seals make 62312-2RS slower than the open 62312 (limiting 3400 r/min) and forbid solvent washing, which destroys the lifetime grease.
- Do not pry the caps off 62312-2RS to repack it; shield/seal damage leaves a gap that throws grease and admits dirt.
- Catalogue ratings for 62312-2RS (C 81.9 kN, C0 52 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.
- Mount by heating the inner ring (max 120 °C) — driving 62312-2RS home through the outer ring or balls brinells the raceways.
Frequently asked questions
What are the dimensions of 62312-2RS?
The SKF 62312-2RS1 measures 60 mm bore × 130 mm OD × 46 mm width (2.362 × 5.118 × 1.811 in), mass about 2550 g. It has two contact rubber seals and a lifetime grease fill.
How does the bore code in 62312 work?
The final two digits of 62312 are bore code 12, multiplied by 5 to give 60 mm.
What load can 62312-2RS take?
Catalogue values for 62312-2RS1: dynamic C 81.9 kN, static C0 52 kN, fatigue limit Pu 2.2 kN. Use C in life calculation and C0 for static checks at 60 mm bore.
What is the speed rating of 62312-2RS?
SKF publishes only the 3400 r/min limiting speed for this execution; sealed variants have no thermal reference speed because seal and grease life govern.
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.