32052 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 32052 model number is decoded

In SKF catalogue PUB BU/P1 17000, 32052 appears as SKF 32052 X: an open, single-row tapered roller bearing in the low-friction section of the 32000 dimension series, supplied with a pressed-steel cage as standard.Digit by digit, 32052 reads as bearing type 3 (single-row tapered roller), low-friction section series 20, and bore reference 52 resolving to 260 mm; 400 mm OD and 87 mm width are the matching ISO 355 boundary values. In SKF suffix language a bare 32052 is the standard execution; B marks a larger contact angle and Q or J2 mark clearance/cage variants, all quoted separately. The 70.0 mm radial section height ((400−260)/2) and 38000 g catalogue mass frame a 260 mm bore bearing rated at 1241 kN C — roughly 4.77 kN of dynamic capacity per millimetre of bore before application factors. Specify pairs rather than single units wherever thrust reverses: the tapered contact of 32052 generates an induced axial load under radial force, and an unpaired bearing on a reversing shaft will run slack and fret its seat. Dimensional interchange map: within the 32000 series at 260 mm bore, the 400 mm OD and 87 mm width are fixed by the ISO 355 plan, so any same-code bearing from another brand shares the mounting envelope; the 70.0 mm section height distinguishes this family from a 302 or 322 of the same bore, and the 38000 g mass is the minimum—sealed or snap-ring executions add rotating weight above that catalogue baseline.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 260 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 320 series at 260 mm bore (400×87 mm) is the low-friction, higher-speed section; it carries less thrust than a 30252 of the same bore, so verify the axial load share before swapping.
• O (back-to-back) pairs are stiffer against moments, X (face-to-face) pairs tolerate misalignment and thermal growth better; choosing the arrangement from the 2D drawing rather than the actual shaft thermal expansion is a common 32052 mounting error.
• At the 1241 kN rating of 32052, preload class changes stiffness by tens of percent but also heat generation; select light preload for the 1,400 r/min speed end and heavier preload only where moment stiffness dominates.
• The 32052 shares its ISO 355 envelope with other tapered bearings of the same code but is not a drop-in replacement for a ball bearing: it cannot run effectively under pure radial load without a minimum axial load, and a deep-groove bearing cannot replace its combined-load duty.
• The 1241/2200 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 32052 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 32052 X designation when purchasing and match the execution to the mounting arrangement.