7024-BGM 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 7024-BGM model number is decoded

7024 BGM is SKF's 120 mm-bore single-row angular-contact ball bearing in the 7000 series, nominal 40° (B) contact angle, 120×180×28 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. machined brass cage, ball-centred (suffix M), the choice for high speed, marginal lubrication and shock duty. G marks a universally matchable bearing delivered with axial internal clearance (rather than factory preload), the starting point for field-set preload in a DB/DF set. Envelope 120×180×28 mm (4.724×7.087×1.102 in), 30.0 mm radial section height, C 87.1 kN, C0 93 kN, Pu 3.2 kN.reference speed 4,000 r/min (thermal) and limiting speed 4,000 r/min (mechanical), which coincide for this size, catalogue mass 2400 g. Load balance: C0 93 kN against C 87.1 kN gives a 1.07 ratio, typical of a steep-angle axial-oriented design; Pu 3.2 kN enters the SKF adjusted-life equation rather than the basic rating life. Sizing arithmetic on the 120 mm bore: 87.1 kN C divided by the 30.0 mm radial section height gives 2.9 kN per section millimetre; the 2400 g mass and 4 % Pu/C share frame the light-load floor for the adjusted-life check. Bore-to-OD planning: OD 180 over bore 120 is a 1.50× step for this size, and the 28 mm width gives a bore/width ratio of 4.29; use these ratios when housing space around the 120 mm shaft is the first constraint. Large-bore universal execution: the G suffix marks a universally matchable bearing delivered with controlled axial internal clearance rather than a factory preload, paired here with a machined brass cage (M); BGM is the large-section 70xx/72xx/73xx answer where field-set preload and brass-cage robustness are both required.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Do not mix execution classes inside one set: a universally matchable BGM 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.
• 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.
• Do not mix execution classes inside one set: a universally matchable BGM unit is ground for arbitrary pairing, a basic execution is not.
• The steep 40° angle of 7024-BGM 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 7024 BGM as the single g brass execution; the other order numbers of the 7024 size are different products and may carry different ratings — always quote the full designation when purchasing.