432230XU bearing: complete specifications & equivalents

Specification table

Source: catalog reference (NTN 2203E 2026-09-25) · extracted 2026-10-01

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN 2203E 2026-09-25); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.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 432230XU model number is decoded

NTN supplies this 150 mm shaft position as 4T-432230XU: a factory-adjusted double-row tapered roller bearing whose two roller rows share one double cup, overall width 164 mm. Reading the designation: the last two digits 30 are the bore code, ×5 = 150 mm (codes 00–03 use the 10/12/15/17 exception table); the leading digits place the bearing in the heavy-duty 432-family TDO double-row series. Selection: C 1330 kN against C0 2140 kN gives a C0/C ratio of 1.61; the two rows of 4T-432230XU share the combined load as one bearing position. TDO construction means the two cone assemblies of 4T-432230XU face away from each other inside one double cup: the load lines diverge outward, giving a wide effective spread and high moment stiffness for the 150 mm shaft. At 1330 kN C the unit offers about 8.9 kN per millimetre of the 150 mm bore — heavy-section TDO rows of this class run warm, so confirm oil availability before working near 1,500 r/min.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 150 mm bore the 4T-432230XU unit needs hydraulic or crane-assisted fitting and a verified oil supply; manual methods cannot control seating at the 1330 kN C level.
• The 432 heavy plan gives 4T-432230XU its 164 mm width and 1330 kN rating at the 150 mm bore; do not downgrade to a 430-family unit of the same bore without re-checking C, C0 and the 209 kN Cu.
• Order by the full 432230XU code including suffixes — U, X, DX, E1 and UTG variants share the 150 mm bore but are different articles with different internal geometry.
• Order by the full 432230XU code including suffixes — U, X, DX, E1 and UTG variants share the 150 mm bore but are different articles with different internal geometry.
• Order by the full 432230XU code including suffixes — U, X, DX, E1 and UTG variants share the 150 mm bore but are different articles with different internal geometry.
• The 1330/2140 kN ratings and 209 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-432230XU; internal geometry legitimately differs between manufacturers, so re-verify ratings, clearance class and suffix before substituting another make on a rated drive.