7301-BEP bearing: complete specifications & equivalents

Specification table

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.

Cross references & equivalents

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 7301-BEP model number is decoded

7301 BEP is SKF's 12 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 12×37×12 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 12×37×12 mm (0.472×1.457×0.472 in), 12.5 mm radial section height, C 10.6 kN, C0 5 kN, Pu 0.208 kN.reference speed 26,000 r/min (thermal) and limiting speed 24,000 r/min (mechanical), catalogue mass 60 g. Sizing arithmetic on the 12 mm bore: 10.6 kN C divided by the 12.5 mm radial section height gives 0.8 kN per section millimetre; the 60 g mass and 2 % Pu/C share frame the light-load floor for the adjusted-life check. The 0.208 kN fatigue load limit is the equivalent-load floor for long-life adjustment; with 10.6/5 kN ratings and 60 g mass this execution carries about 0.88 kN of C per millimetre of bore. Bore-to-OD planning: OD 37 over bore 12 is a 3.08× step for this size, and the 12 mm width gives a bore/width ratio of 1.00; 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

Selection pitfalls — read before you substitute

• Assign interference to the rotating ring — roughly j5 on a 12 mm rotating shaft with an H7 housing — and let the stationary ring slide for axial setting; reverse the logic if the outer ring rotates.
• 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.
• Mount by induction-heating the inner ring to max 120 °C — the PA66 cage sets the ceiling, not the steel; driving the bearing home through the outer ring or balls brinells the asymmetric raceway.
• The steep 40° angle of 7301-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 7301 BEP as the single basic pa66 execution; the other order numbers of the 7301 size are different products and may carry different ratings — always quote the full designation when purchasing.