23268 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 23268 model number is decoded

SKF 23268 (23268 CA/W33) is the spherical-roller choice for a 340 mm shaft — barrel rollers between an inner ring with two raceways and a common sphered outer raceway inside the 620×224 mm ISO 15 envelope. Digit by digit, 23268 reads as bearing type 2 (spherical roller, two barrel-roller rows), dimension series 32, and bore reference 68 resolving to 340 mm; 620 mm OD and 224 mm width are the matching ISO 15 boundary values. 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 140.0 mm radial section height ((620−340)/2) and 295000 g catalogue mass frame a 340 mm bore bearing rated at 5362 kN C — roughly 15.77 kN of dynamic capacity per millimetre of bore before application factors. A 340 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 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 23200-series series at 340 mm bore (620×224 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 224 mm width changes abutment spacing, even though the 620 mm OD matches.
• The 295000 g mass and 224 mm width mean abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the outer ring and concentrates load on one roller row of 23268.
• Shaft and housing fillets must clear the bearing chamfer so the 224 mm-wide rings seat square; use an undercut or withdrawal groove rather than an oversized radius that locks on the ring face.
• The 5362/7800 kN ratings are SKF catalogue values for this exact execution (23268 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 23268 (cylindrical bore as listed, tapered-bore 23268 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 23268 CA/W33 designation when purchasing.