32234 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 32234 model number is decoded

In SKF catalogue PUB BU/P1 17000, 32234 appears as SKF 32234: an open, single-row tapered roller bearing in the heavy section of the 32200 dimension series, supplied with a pressed-steel cage as standard.Numbering ties the bearing to its envelope: 32234 means tapered-roller type 3, heavy section series 22, 170 mm bore — which is why the 310×91 mm outline swaps dimensionally with other ISO 355 bearings of the same code. 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: 1,500 r/min thermal reference and 2,000 r/min mechanical limiting speed. Because the contact line is tapered, one 32234 reacts thrust in a single direction; bidirectional shafts need an O or X pair, and a rotating cone on a 170 mm shaft typically takes a m6 seat with an H7 housing bore. Dimensional interchange map: within the 32200 series at 170 mm bore, the 310 mm OD and 91 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 28500 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 170 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 170 mm bore (310×91 mm) is a wider, higher-capacity section than 30234; do not substitute without re-checking shaft shoulder diameters and pair setting.
• Do not mix brands or executions inside one 32234 pair — matched sets are ground for a specific setting, and pairing a SKF basic unit with a different suffix variant will not share the setting evenly.
• The tapered contact angle creates an induced axial load under pure radial force; include it in the 32234 rating calculation (and account for it in both bearings of a pair) or the unloaded bearing skids its rollers.
• The 28500 g mass and 91 mm width mean spacer and abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the contact angle and concentrates load on one rib of 32234.
• The 1075/1630 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 32234 (basic, B steeper angle, Q/J2 clearance variants); they are not interchangeable order numbers — quote the full SKF 32234 designation when purchasing and match the execution to the mounting arrangement.