24068-CCK30-W33 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.3 withdrawal-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. 9.3 withdrawal-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 24068-CCK30-W33 model number is decoded

The SKF 24068 CCK30/W33 is a 340×520×180 mm spherical roller bearing with a 1:30 tapered bore — SKF catalogue execution for sleeve mounting on a 340 mm plain shaft, retaining the double-row self-aligning barrel-roller design. The code breaks down as type digit 2 (double-row spherical roller), dimension series 40 (dimension series 40 (compact OD, maximum width)), and bore code 68 = 340 mm; dimensions 340×520×180 mm therefore match the ISO 15 envelope. Sleeve mounting is why the K30 execution exists: a plain h9-tolerance shaft is enough because the adapter sleeve supplies the precision seat, and the bearing is removable without pulling over an interference journal — a separate order number from the cylindrical-bore bearing, never a field conversion. The 475 kN Pu figure feeds the adjusted-life equation at contaminated or partial-film conditions, and the 1.71 C0/C balance shows this execution is tuned to heavy radial-plus-axial duty with misalignment tolerance. On an H adapter sleeve the 340 mm shaft seat only needs an h9 plain journal; slide the sleeve into the 24068-cck30-w33 inner ring, tighten the KM nut against the MB washer until the catalogue clearance-reduction value is reached, then lock the washer tab.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 340 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 24000-series series at 340 mm bore (520×180 mm) packs maximum roller length into the smallest OD envelope — very high C0 for its size but the lowest speed ceiling; never swap it for a wider-OD 231 bearing without re-checking the housing bore and the speed margin.
• A loose sleeve after the first weeks of service usually means inadequate initial drive-up; re-checking clearance without dismounting is possible through the 180 mm-wide roller rows with feeler gauges — do not simply tighten the KM nut until vibration stops.
• Never apply the drive-up or clearance-reduction figures for this 1:30 tapered 24068-cck30-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 24068-cck30-w33 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 3621/6200 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
• The 3621/6200 kN ratings are SKF catalogue values for this tapered-bore execution (SKF 24068 CCK30/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.