7220-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 7220-BEP model number is decoded

7220 BEP is SKF's 100 mm-bore single-row angular-contact ball bearing in the 7200 series, nominal 40° (B) contact angle, 100×180×34 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 100×180×34 mm (3.937×7.087×1.339 in), 40.0 mm radial section height, C 135 kN, C0 122 kN, Pu 4.4 kN.reference speed 4,300 r/min (thermal) and limiting speed 4,000 r/min (mechanical), catalogue mass 3300 g. Load balance: C0 122 kN against C 135 kN gives a 0.90 ratio, typical of a steep-angle axial-oriented design; Pu 4.4 kN enters the SKF adjusted-life equation rather than the basic rating life. Speed planning distinguishes the two published ceilings mechanically: the cage and balls tolerate 4,000 r/min while thermal balance under catalogue load sets the 4,300 r/min reference; at dm ≈ 140.0 mm the corresponding dn is approximately 560k mm·r/min. Speed-ratio note for this exact unit: the reference speed is 4,300 r/min against a 4,000 r/min limiting speed, i.e. a reference-to-limit ratio of 1.07. 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 k5 on a 100 mm rotating shaft with an H7 housing — and let the stationary ring slide for axial setting; reverse the logic if the outer ring rotates.
• At 100 mm bore the k5 seat assumes a steel shaft and housing; aluminium housings grow faster with temperature, so re-check the outer-ring setting when the case is non-ferrous.
• Fillet radii must clear the chamfer so the 34 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
• Greased positions should fill roughly 25–35 % of the free volume on a 7220-BEP of this section and route the surplus past the outer ring; overpacking churns the grease and reproduces the thermal preload problem mechanically.
• The steep 40° angle of 7220-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 7220 BEP as the single basic pa66 execution; the other order numbers of the 7220 size are different products and may carry different ratings — always quote the full designation when purchasing.