23276 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 23276 model number is decoded

Ordering number 23276 CA/W33 in SKF catalogue PUB BU/P1 17000 denotes a double-row spherical roller bearing for a 380 mm shaft, dimension series 32 (medium OD, extra wide), with open execution and a one-piece machined brass cage guided on the inner ring (CA design). Digit by digit, 23276 reads as bearing type 2 (spherical roller, two barrel-roller rows), dimension series 32, and bore reference 76 resolving to 380 mm; 680 mm OD and 240 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. At 500 r/min reference speed the 150.0 mm-section 23276 is governed thermally by lubricant flow through the W33 groove and the two-row roller complement; grease or oil selection should be made against that value, with 750 r/min as the mechanical ceiling. For relubrication, route the grease duct to the outer-ring W33 groove position where fitted, and purge until fresh grease appears at the seal — the 240 mm width across two roller rows needs the full charge.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 380 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 380 mm bore (680×240 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 240 mm width changes abutment spacing, even though the 680 mm OD matches.
• The 375000 g mass and 240 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 23276.
• The 23276 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 6126/9150 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
• The 6126/9150 kN ratings are SKF catalogue values for this exact execution (23276 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 23276 (cylindrical bore as listed, tapered-bore 23276 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 23276 CA/W33 designation when purchasing.