7305-BEY 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 7305-BEY model number is decoded

7305 BEY is SKF's 25 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 25×62×17 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. stamped brass cage, ball-centred (suffix Y) — lighter than the machined M cage but brass rather than polymer. The BEY is a basic single bearing with a stamped brass Y cage — a single unit, not a universally matchable one.. Envelope 25×62×17 mm (0.984×2.441×0.669 in), 18.5 mm radial section height, C 24.2 kN, C0 14 kN, Pu 0.6 kN.reference speed 14,000 r/min (thermal) and limiting speed 14,000 r/min (mechanical), which coincide for this size, catalogue mass 230 g. Sizing arithmetic on the 25 mm bore: 24.2 kN C divided by the 18.5 mm radial section height gives 1.3 kN per section millimetre; the 230 g mass and 2 % Pu/C share frame the light-load floor for the adjusted-life check. Load balance: C0 14 kN against C 24.2 kN gives a 0.58 ratio, typical of a steep-angle axial-oriented design; Pu 0.6 kN enters the SKF adjusted-life equation rather than the basic rating life. Bore-to-OD planning: OD 62 over bore 25 is a 2.48× step for this size, and the 17 mm width gives a bore/width ratio of 1.47; use these ratios when housing space around the 25 mm shaft is the first constraint. Ordering note: BEY is the basic single bearing with the stamped brass strip cage (Y) — light and oil-additive tolerant, but not ground on the side faces for set mounting; order BECBY for a universally matchable stamped-brass unit.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• Reference and limiting speeds are different ceilings: design to both, and remember preload and oil/air cooling move the real thermal limit far from the catalogue reference value.
• Assign interference to the rotating ring — roughly k5 on a 25 mm rotating shaft with an H7 housing — and let the stationary ring slide for axial setting; reverse the logic if the outer ring rotates.
• Reference and limiting speeds are different ceilings: design to both, and remember preload and oil/air cooling move the real thermal limit far from the catalogue reference value.
• The steep 40° angle of 7305-BEY 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 7305 BEY as the single basic stamped brass execution; the other order numbers of the 7305 size are different products and may carry different ratings — always quote the full designation when purchasing.