7222 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB); 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 7222 model number is decoded

SKF 7222 (7222 BEP) is the light (7200) series angular-contact choice for a 110 mm shaft — one row of balls on a steepened, asymmetric raceway giving a nominal 40° contact angle inside the 200×38 mm ISO 15 envelope.Numbering ties the bearing to its envelope: 7222 means angular-contact type 7, light section section 2, 110 mm bore — which is why the 200×38 mm outline swaps dimensionally with a 6222, though the load behaviour does not. Suffix letters after 7222 describe the build: B fixes the 40° contact angle, E denotes the reinforced internal geometry, and P identifies the moulded PA66 glass-fibre cage rather than a stamped-steel or machined-brass one. With C 153 kN and C0 143 kN, the 7222 pair-sizing check is dominated by the axial share: keep the equivalent load P below the rating at the required L10, remembering one bearing alone cannot cover reversing thrust at 3,600 r/min. A single 7222 locates the shaft in one axial direction only; for bidirectional location order a matched pair — DB for moment stiffness, DF for tolerance of thermal expansion — and size the preload against the real load and speed of the position.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 110 mm bore the ring mass is high enough that cocking during mounting damages the cage and race lips; guide the ring square, confirm seat contact around the full circumference, and re-check preload after the first thermal cycle of the paired set.
• The 72xx light section at 110 mm bore is the general-purpose angular-contact envelope (200×38 mm); stepping up to a 7322 changes OD, width and heat generation — it is not a drop-in swap when the housing and speed are fixed.
• At the 153 kN rating of 7222, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 3,600 r/min speed end and heavier preload only where moment stiffness dominates.
• The 40° contact angle creates an induced axial load under pure radial force; include it in the 7222 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its balls.
• The PA66 cage is rated for 120 °C continuous service; sustained hotter running (hot process gas, heat soak from a coupling) embrittles the cage — select the machined-brass BECBM execution for positions above that.
• The 153/143 kN ratings are SKF catalogue 17000 values for the 7222 BEP execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
• SKF lists several executions of 7222 (BEP basic, BECBP universally matchable, BE-2RZP sealed, BECBM brass-cage, ACC-series at 25°); they are not interchangeable order numbers — quote the full 7222 BEP designation when purchasing and match the execution to the mounting arrangement.
• A plain 7222 BEP is a single open bearing, not a universally matchable one; to mount a defined DB/DF pair order the BECBP (CB) execution — pairing two unmatched basic units gives uncontrolled preload because the side faces are not ground for set mounting.