7201-BEP bearing: complete specifications & equivalents
The 7201-BEP is a ISO 15 radial bearing sized 12 x 32 x 10 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 12 mm |
| Outer diameter D | 32 mm |
| Width B | 10 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 7.61 kN |
| Basic static load rating C0 | 3.8 kN |
| Fatigue load limit Pu | 0.16 kN |
| Reference speed (thermal) | 28000 rpm |
| Limiting speed (mechanical) | 26000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 36 g |
| Manufacturer designation | 7201 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 & 7200-series range
| Bore d | 0.472 in |
|---|---|
| Outer diameter D | 1.26 in |
| Width B | 0.394 in |
| ISO bore code | 01 |
| Radial section height (D−d)/2 | 10 mm |
| Smallest bore in 7200-series | 10 mm |
| Largest outer diameter in 7200-series | 540 mm |
| Width range across 7200-series | 9–85 mm |
| Bore position in 7200-series (smallest first) | 2 of 36 |
| Bore above smallest 7200-series size | 2 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7201-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. |
| 7201-BECBP | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 12×32×10 mm envelope with catalogue ratings within 10 %; 7201 BECBP is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7201 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 7201 BEP is the basic 12×32×10 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 7201-BEP model number is decoded
7201 BEP is SKF's 12 mm-bore single-row angular-contact ball bearing in the 7200 series, nominal 40° (B) contact angle, 12×32×10 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 12×32×10 mm (0.472×1.26×0.394 in), 10.0 mm radial section height, C 7.61 kN, C0 3.8 kN, Pu 0.16 kN.reference speed 28,000 r/min (thermal) and limiting speed 26,000 r/min (mechanical), catalogue mass 36 g. Speed planning distinguishes the two published ceilings mechanically: the cage and balls tolerate 26,000 r/min while thermal balance under catalogue load sets the 28,000 r/min reference; at dm ≈ 22.0 mm the corresponding dn is approximately 572k mm·r/min. Sizing arithmetic on the 12 mm bore: 7.61 kN C divided by the 10.0 mm radial section height gives 0.8 kN per section millimetre; the 36 g mass and 2 % Pu/C share frame the light-load floor for the adjusted-life check. Bore-to-OD planning: OD 32 over bore 12 is a 2.67× step for this size, and the 10 mm width gives a bore/width ratio of 1.20; use these ratios when housing space around the 12 mm shaft is the first constraint. 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
- dental and laboratory high-speed rotors
- miniature turbine and gyro drives
- high-speed engraving and routing spindles
Known failure patterns
- ball skidding when the induced axial load unloads the inactive bearing of a pair
- preload loss as a loosely clamped set runs slack and the balls smear the raceways
- ball skidding when Fa/Fr stays below the 1,0 (40°) or 0,55 (25°) ratio and the contact ellipse is unloaded
- PA66 cage creep or embrittlement when the non-universal single bearing is run above 120 °C
- mounting score marks when the bearing is cocked over a burr or keyway
- mounting score marks when the bearing is cocked over a burr or keyway
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.
- 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.
- Fillet radii must clear the chamfer so the 10 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- The steep 40° angle of 7201-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 7201 BEP as the single basic pa66 execution; the other order numbers of the 7201 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 7201-BEP?
7201 BEP measures 12 mm bore × 32 mm OD × 10 mm width (0.472 × 1.26 × 0.394 in), mass about 36 g. SKF 17000 ratings: C 7.61 kN, C0 3.8 kN, Pu 0.16 kN, reference speed 28,000 r/min (thermal) and limiting speed 26,000 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 do the reference and limiting speeds mean for 7201-BEP?
The 28,000 r/min reference (thermal) and 26,000 r/min limiting (mechanical) speeds are catalogue conditions; preload, lubrication and heat removal move the permissible value, so re-calculate for the actual arrangement.
Can one 7201-BEP take thrust in both directions?
No. A single-row angular-contact bearing reacts axial load in one direction; reversing thrust needs a DB/DF matched pair (use a universally matchable CB/GA execution) or a double-row bearing. Under radial load the 40° angle induces an axial force that the arrangement must balance.
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.