7205-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 7205-BEY model number is decoded

7205 BEY is SKF's 25 mm-bore single-row angular-contact ball bearing in the 7200 series, nominal 40° (B) contact angle, 25×52×15 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 25×52×15 mm (0.984×2.047×0.591 in), 13.5 mm radial section height, C 14.8 kN, C0 9.3 kN, Pu 0.4 kN.reference speed 16,000 r/min (thermal) and limiting speed 15,000 r/min (mechanical), catalogue mass 130 g. Selection figures for 7205 BEY: the static-to-dynamic ratio C0/C is 0.63, Pu 0.4 kN is about 3 % of C, and catalogue mass works out to roughly 5 g per millimetre of bore. Speed planning distinguishes the two published ceilings mechanically: the cage and balls tolerate 15,000 r/min while thermal balance under catalogue load sets the 16,000 r/min reference; at dm ≈ 38.5 mm the corresponding dn is approximately 578k mm·r/min. Bore-to-OD planning: OD 52 over bore 25 is a 2.08× step for this size, and the 15 mm width gives a bore/width ratio of 1.67; 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

• Greased positions should fill roughly 25–35 % of the free volume on a 7205-BEY of this section and route the surplus past the outer ring; overpacking churns the grease and reproduces the thermal preload problem mechanically.
• 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.
• 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.
• Do not mix execution classes inside one set: a universally matchable BEY unit is ground for arbitrary pairing, a basic execution is not.
• The steep 40° angle of 7205-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 7205 BEY as the single basic stamped brass execution; the other order numbers of the 7205 size are different products and may carry different ratings — always quote the full designation when purchasing.