32240 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB) · extracted 2026-09-28

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.1 metric single-row TRB); 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 32240 model number is decoded

The SKF 32240 is a 200×360×104 mm single-row tapered roller bearing — the heavy section entry in the 32200 series, with an asymmetric raceway cut for thrust capacity and separable mounting.Reading the designation: the leading 3 marks a single-row tapered roller bearing, the 22 is the ISO 355 diameter/width series (heavy section), and the last two digits encode the 200 mm bore; the 360 mm OD and 104 mm width follow the ISO 355 general plan. SKF lists the plain number as the basic execution; letter suffixes such as B denote a steeper contact angle and are different order numbers. Speed planning uses two different ceilings: 1,300 r/min thermal reference and 1,700 r/min mechanical limiting speed. Mounting practice for 32240: the rotating cone takes the interference fit (m6 on a 200 mm shaft), the cup slides for axial location, and reversing-thrust duty demands a paired O/X set rather than one bearing. Operating context for the 200 mm bore: a shaft of this diameter in the xl-bore band typically runs between 160000 and 240000 r/min in real machinery, and the 360 mm outside diameter places the housing shoulder at 368 mm outer abutment; the 104 mm width and 42500 g mass together set the shaft critical speed and the housing resonance check for this 32200-series envelope.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 200 mm bore the cone mass is high enough that cocking during mounting damages the cage and rib; guide the ring square, confirm seat contact around the full circumference, and re-check setting after the first thermal cycle of the paired set.
• The 322 series at 200 mm bore (360×104 mm) is a wider, higher-capacity section than 30240; do not substitute without re-checking shaft shoulder diameters and pair setting.
• At the 1300 kN rating of 32240, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 1,700 r/min speed end and heavier preload only where moment stiffness dominates.
• When the outer ring rotates, reverse the fit logic and provide cup location; the tapered contact of 32240 pushes the rings apart under load, so a non-located cup walks its seat even when the shaft is fixed.
• Open 32240 units need application-supplied sealing and a defined EP lubricant supply; the roller-rib contact is the first to fail when the additive film breaks down.
• The 1300/2000 kN ratings are SKF catalogue 17000 values for the basic execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
• SKF lists several executions of 32240 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 32240 designation when purchasing and match the execution to the mounting arrangement.