23240-CCK-W33 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.2 adapter-sleeve executions); 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 23240-CCK-W33 model number is decoded

In SKF catalogue PUB BU/P1 17000, 23240-cck-w33 denotes the tapered-bore version (K suffix, taper 1:12) of the 23200-series spherical roller bearing: dimensioned 200×360×128 mm, it seats on an adapter or withdrawal sleeve rather than directly on a machined journal. The code breaks down as type digit 2 (double-row spherical roller), dimension series 32 (dimension series 32 (medium OD, extra wide)), and bore code 40 = 200 mm; dimensions 200×360×128 mm therefore match the ISO 15 envelope. Reading the suffix on 23240-cck-w33, the K (or EK/CCK) element changes only the bore — 1:12 taper for sleeve mounting — while the rest of the suffix chain (CC cages with W33 groove) keeps the same internal design, cage and W33 relubrication features as the cylindrical-bore 23240-cc-w33. The 80.0 mm radial section height ((360−200)/2) and 70000 g catalogue mass frame a 200 mm bore bearing rated at 1947 kN C — roughly 9.73 kN of dynamic capacity per millimetre of bore before application factors. After drive-up, re-check radial clearance and then swing the outer ring through its self-aligning range: the sphered raceway of the 23240-cck-w33 must still tilt ≈ 0.5–2.5° freely — a joint that binds after sleeve mounting signals excessive drive-up or a cocked sleeve.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 200 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 200 mm bore (360×128 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 128 mm width changes abutment spacing, even though the 360 mm OD matches.
• The 23240-cck-w33 and its cylindrical-bore counterpart 23240-cc-w33 share envelope and load ratings (1947/2700 kN) but are not interchangeable in a housing already fitted for direct shaft mounting — the sleeve changes the assembly stack-up.
• Never apply the drive-up or clearance-reduction figures for this 1:12 tapered 23240-cck-w33 to a bearing of the other taper (1:12 vs 1:30); the steeper taper moves far less clearance per nut turn and the targets come from different catalogue tables.
• The self-aligning feature is not a license to ignore alignment: beyond ≈ 0.5–2.5° (series-dependent) the edge loading eats the fatigue margin, and seal drag grows as the rings tilt.
• The 1947/2700 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 23240 CCK/W33); sleeve, KM nut and MB washer are separate order numbers, and the catalogue version (SKF catalogue PUB BU/P1 17000) should travel with the mounting specification.