N2230 bearing: complete specifications & equivalents

Specification table

Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01

Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); 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 N2230 model number is decoded

N2230 is the wide (22) section of the NTN N2200 dimension series for a 150 mm shaft — 555 kN of basic dynamic capacity in a 16000 g, open bearing. The leading N defines the rib arrangement (inner ring ribbed, outer ring ribless); the dimension-series digits and the two-digit bore code resolve to 150 mm, with 270 mm OD and 73 mm width from the ISO 15 general plan. The 73 mm width and 60.0 mm section put the N2200 series in the wide (22) section; wide 22/23 variants at the same bore change OD, width and heat generation and are not drop-in swaps. The 150 mm (5.906 in) bore and 270 mm (10.63 in) OD are ISO 15 boundary values; fillet and shoulder dimensions must still come from the NTN mounting table for the 73 mm-wide ring. Keep the open bearing wrapped until fitting: the line-contact raceways of the 150 mm bore indent under a single hard particle, and the steel cage provides no sealing of its own.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• At 150 mm bore, oil-lubricated arrangements toward 2,600 r/min need positive flow and drain design; the 16000 g N2230 ring stores enough heat that grease-only duty needs a careful relubrication calculation.
• The N rib arrangement is not interchangeable with another prefix on the same 150 mm seat: inner ring ribbed, outer ring ribless. Swapping NU for NJ changes axial location behaviour even though the 270×73 mm envelope matches.
• Wide (22/23) and light (10/49) executions at 150 mm bore share bore but not OD/width; check the full N2200 series code before substituting, because housing and shoulder geometry will not interchange.
• The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 555/710 kN pair here belongs to N2230 as printed, not to the bare size.
• Open N2230 units need application-supplied sealing and a defined lubricant schedule; film thickness is the first failure mode for line contact when viscosity drops at the 150 mm contact.
• The 555/710 kN ratings, 69.5 kN Pu and 16000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N2230 (standard execution); other makes sharing the ISO 15 envelope revise internal geometry without changing the order number, so keep the 2203E reference with the specification for critical drives.