23272 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings); 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 23272 model number is decoded

In SKF catalogue PUB BU/P1 17000, 23272 appears as 23272 CA/W33: an open, double-row spherical roller bearing, self-aligning by virtue of the sphered outer raceway, sized 360×650×232 mm to the ISO 15 boundary plan. Numbering ties the bearing to its envelope: 23272 means spherical-roller type, dimension series 32, 360 mm bore — which is why the 650×232 mm outline swaps dimensionally with other ISO 15 bearings of the same code. In SKF suffix language, CA/W33 means the brass-cage CA execution — often preferred for the largest bores and for shock/vibration duty where a rigid machined cage matters; W33 adds the relubrication groove. The sealed 2CS5 and vibrating-screen VA405 are separate executions. The 570 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.47 C0/C balance shows this execution is tuned to heavy radial-plus-axial duty with misalignment tolerance. A 360 mm rotating inner ring usually runs m6 on the shaft with H7 in the housing; for vibrating-screen duty the outer ring is instead held tight and the shaft seat loosened — follow the screen builder's fit schedule.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 360 mm bore the ring mass makes cocking during mounting a real risk; guide the bearing square, confirm seat contact around the full circumference, and re-check the self-aligning swing after the housing cap is torqued down.
• The 23200-series series at 360 mm bore (650×232 mm) adds still more width for shock-loaded and vibratory loads; it does not interchange with a 231 bearing of the same bore because the 232 mm width changes abutment spacing, even though the 650 mm OD matches.
• Catalogue reference speed and limiting speed are different limits: the 530 r/min reference is a thermal criterion under load, while the 750 r/min limiting value is the mechanical ceiling — observe both.
• Never use the tapered-bore EK/K variant's drive-up figures on this cylindrical-bore 23272; clearance reduction targets differ, and over-driving a cylindrical bore onto an oversized journal cracks the inner ring.
• The 5663/8300 kN ratings are SKF catalogue values for this exact execution (23272 CA/W33); SKF can revise internal geometry without changing the order number, so keep the catalogue version (SKF catalogue PUB BU/P1 17000) with the specification and re-verify for critical drives.
• SKF lists several executions of 23272 (cylindrical bore as listed, tapered-bore 23272 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 23272 CA/W33 designation when purchasing.