23148 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 23148 model number is decoded

For a 240 mm shaft carrying heavy radial load with misalignment or deflection, SKF lists 23148 under catalogue execution 23148 CC/W33: two barrel-roller rows on a sphered outer raceway. Reading the designation: the leading 2 marks a spherical roller bearing, the 31 is the ISO 15 dimension series (dimension series 31 (medium OD, wide)), and the last two digits encode the 240 mm bore; the 400 mm OD and 128 mm width follow the ISO 15 general plan. In SKF suffix language, E marks the optimized high-capacity design and CC/W33 the pressed-steel-cage execution with relubrication groove; both are open bearings — the sealed variant carries the 2CS5 suffix and the vibrating-screen execution VA405. The 80.0 mm radial section height ((400−240)/2) and 66500 g catalogue mass frame a 240 mm bore bearing rated at 2187 kN C — roughly 9.11 kN of dynamic capacity per millimetre of bore before application factors. The cylindrical-bore execution here seats directly on the shaft journal; if the application calls for an adapter sleeve, order the tapered-bore 23148 CCK/W33 variant instead and measure the drive-up or clearance reduction, not the nut torque.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 240 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 23100-series series at 240 mm bore (400×128 mm) is the medium-OD wide envelope for heavy continuous duty; it is wider than a 222 bearing in the same OD class, so housing width and spacer stack must be re-checked before substitution.
• The 23148 shares its ISO 15 envelope across brands, but internal geometry differs — SKF load ratings in this row are 2187/3200 kN; another maker's same-size bearing may rate higher or lower, so do not interchange on envelope alone.
• Catalogue reference speed and limiting speed are different limits: the 1,200 r/min reference is a thermal criterion under load, while the 1,600 r/min limiting value is the mechanical ceiling — observe both.
• The 2187/3200 kN ratings are SKF catalogue values for this exact execution (23148 CC/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 23148 (cylindrical bore as listed, tapered-bore 23148 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 23148 CC/W33 designation when purchasing.