7312-BEP bearing: complete specifications & equivalents
The 7312-BEP is a ISO 15 radial bearing sized 60 x 130 x 31 mm (bore x OD x width). 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 | 31 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 95.6 kN |
| Basic static load rating C0 | 69.5 kN |
| Fatigue load limit Pu | 3 kN |
| Reference speed (thermal) | 6300 rpm |
| Limiting speed (mechanical) | 6000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1750 g |
| Manufacturer designation | 7312 BEP |
| 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 & 7300-series range
| Bore d | 2.362 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 1.22 in |
| ISO bore code | 12 |
| Radial section height (D−d)/2 | 35 mm |
| Smallest bore in 7300-series | 10 mm |
| Largest outer diameter in 7300-series | 420 mm |
| Width range across 7300-series | 11–80 mm |
| Bore position in 7300-series (smallest first) | 13 of 31 |
| Bore above smallest 7300-series size | 50 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7312-BECBP | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 104/76.5 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7312-BECBPH | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 104/76.5 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7312-BECBY | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 104/76.5 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7312-BECBM | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 104/76.5 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7312-ACCBM | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 116/85 kN) — boundary dimensions match, not a load-rating equivalent. |
| QJ-312-N2MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 156/137 kN) — boundary dimensions match, not a load-rating equivalent. |
| QJ-312-MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 156/137 kN) — boundary dimensions match, not a load-rating equivalent. |
| QJ-312-PHAS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 60×130×31 mm envelope, but catalogue C/C0 differ between executions (95.6/69.5 kN vs 156/137 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7312 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 7312 BEP is the basic 60×130×31 mm angular-contact page with ratings within 10 % of this execution — same boundary dimensions, verify execution details. |
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 7312-BEP model number is decoded
7312 BEP is SKF's 60 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 60×130×31 mm to the ISO dimension plan. 40° contact angle (suffix B): the steep standard single-row angle, giving the highest axial capacity at the cost of speed, with a recommended load ratio Fa/Fr ≥ 1. E marks the optimized internal design with an enhanced ball complement and race geometry. glass-fibre reinforced PA66 cage, ball-centred (suffix P), with a 120 °C continuous-temperature ceiling. The plain BEP is a basic single bearing: its faces are not ground for universal matching, so defined pairs require the BECBP execution rather than two arbitrary BEP units.. Envelope 60×130×31 mm (2.362×5.118×1.22 in), 35.0 mm radial section height, C 95.6 kN, C0 69.5 kN, Pu 3 kN.reference speed 6,300 r/min (thermal) and limiting speed 6,000 r/min (mechanical), catalogue mass 1750 g. Sizing arithmetic on the 60 mm bore: 95.6 kN C divided by the 35.0 mm radial section height gives 2.7 kN per section millimetre; the 1750 g mass and 3 % Pu/C share frame the light-load floor for the adjusted-life check. The 3 kN fatigue load limit is the equivalent-load floor for long-life adjustment; with 95.6/69.5 kN ratings and 1750 g mass this execution carries about 1.59 kN of C per millimetre of bore. Speed-ratio note for this exact unit: the reference speed is 6,300 r/min against a 6,000 r/min limiting speed, i.e. a reference-to-limit ratio of 1.05. Basic polymer-cage execution: BEP is delivered as an individual open bearing with the 40-degree optimized internals and a glass-fibre PA66 ball-centred cage; it is not ground on the side faces for arbitrary pairing, so a reversing-thrust position should order BECBP for a set rather than mounting two unmatched BEP units.
Typical equipment & failure modes
Common applications
- printing and paper-machine rolls
- crane sheave and hoist gearboxes
- vibrating screens and shale shaker shafts
Known failure patterns
- fretting at the ground set faces of a universal pair whose clamp torque relaxes
- raceway spalling from axial overload beyond the single-direction thrust rating
- raceway smearing under minimum-axial-load starvation at light load and high speed
- PA66 cage creep or embrittlement when the non-universal single bearing is run above 120 °C
- fretting corrosion on a loose rotating shaft seat
- rolling-contact fatigue spalling after the rated L10 life is exceeded
Selection pitfalls — read before you substitute
- Do not mix execution classes inside one set: a universally matchable BEP unit is ground for arbitrary pairing, a basic execution is not.
- Keep the load ratio in the SKF design range: Fa/Fr ≥ 1 for this angle; below it the balls unload the contact ellipse and skid, which is why the catalogue insists on a minimum axial load (Fam ≈ A·(n·dm/1000)²) at high speed.
- DB pairs give the highest moment stiffness, DF pairs tolerate misalignment and thermal expansion better, DT shares heavy one-direction thrust; choose from the shaft thermal calculation rather than by habit.
- Do not mix execution classes inside one set: a universally matchable BEP unit is ground for arbitrary pairing, a basic execution is not.
- The steep 40° angle of 7312-BEP favours thrust-heavy combined loads; for a predominantly radial high-speed position the 25° ACCBM execution of the same size is the alternative order number.
- Catalogue ratings are SKF PUB BU/P1 17000 figures for 7312 BEP as the single basic pa66 execution; the other order numbers of the 7312 size are different products and may carry different ratings — always quote the full designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 7312-BEP?
7312 BEP measures 60 mm bore × 130 mm OD × 31 mm width (2.362 × 5.118 × 1.22 in), mass about 1750 g. SKF 17000 ratings: C 95.6 kN, C0 69.5 kN, Pu 3 kN, reference speed 6,300 r/min (thermal) and limiting speed 6,000 r/min (mechanical).
What does the BEP suffix mean?
40° contact angle (suffix B): the steep standard single-row angle, giving the highest axial capacity at the cost of speed, with a recommended load ratio Fa/Fr ≥ 1. E marks the optimized internal design with an enhanced ball complement and race geometry. glass-fibre reinforced PA66 cage, ball-centred (suffix P), with a 120 °C continuous-temperature ceiling. The plain BEP is a basic single bearing: its faces are not ground for universal matching, so defined pairs require the BECBP execution rather than two arbitrary BEP units..
What is the difference between BEP, BECBP and BECBM?
All share the 40° optimized geometry: BEP is the basic PA66-caged single bearing, BECBP adds CB universal matching (ground faces, Normal clearance) with the same PA66 cage, and BECBM is the universally matchable version with a machined brass cage for higher speed and temperature.
Which fits should I use for 7312-BEP?
With a rotating inner ring use roughly k5 on the 60 mm shaft and H7 in the housing; give the stationary ring a slide fit for axial setting, and reverse the logic when the outer ring rotates.
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.