N2210EA 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 N2210EA model number is decoded

N2210EA is an NTN N cylindrical roller bearing: two integral ribs on the inner ring and a ribless separable outer ring — equivalent float behaviour with the separable ring on the housing side, inside the 50×90×23 mm ISO 15 envelope. On the NTN nameplate N states which ring carries the ribs, which determines whether N2210EA floats or locates; the numeric remainder is the ISO 15 series and 50 mm bore reference, not a fit or clearance instruction. NTN prints the raceway diameters for this size — Fw 59.5 mm and Ew 81.5 mm — the envelope inside the 50/90 mm bore/OD where the rollers actually run. Mass 584 g for the 50×90×23 mm N2210EA execution covers the pressed-steel cage and full roller complement; substitute on mass plus rating, not envelope alone. Provide axial location with an adjacent locating bearing rather than expecting the float cylindrical set to hold thrust on the 50 mm shaft.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• On this 50 mm bore, shaft thermal growth can preload the inner ring if the fit is too tight; verify residual interference at temperature and confirm the float ring still slides after mounting N2210EA.
• The 23 mm width and abutment faces must be square to the axis; a tilted spacer concentrates load across the roller set and shows as uneven raceway polish on the 50 mm inner ring.
• Wide (22/23) and light (10/49) executions at 50 mm bore share bore but not OD/width; check the full N2200 series code before substituting, because housing and shoulder geometry will not interchange.
• Grease limiting speed 6,200 r/min and oil 8,800 r/min are different limits for N2210EA: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
• The N rib arrangement is not interchangeable with another prefix on the same 50 mm seat: inner ring ribbed, outer ring ribless. Swapping NU for NJ changes axial location behaviour even though the 90×23 mm envelope matches.
• The 98.5/97 kN ratings, 11.9 kN Pu and 584 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N2210EA (EA pressed-steel-cage 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.