N410 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 N410 model number is decoded

N410 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 50×130×31 mm ISO 15 envelope. Digit by digit, N410 reads as N (inner ring ribbed, outer ring ribless), ISO 15 series, and bore 50 mm; trailing letters such as EA or E mark the cage/capacity execution and are part of the order number. NTN prints two speed ceilings: 4,700 r/min grease and 5,500 r/min oil — the pressed-steel cage and lubricant film set the real limit at the 50 mm bore. Thermal planning around the 4,700 r/min grease ceiling should include the cage type (a pressed sheet-steel cage) and oil-flow option to 5,500 r/min for continuously high-duty 50 mm positions. Heat the inner ring to max 120 °C for the 50 mm interference fit and support the ring face square during fitting; cocking over a keyway brinells the raceway before first rotation.

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 N410.
• Minimum radial load is frequently missed in oversized motor and fan selections: an underloaded N410 skids at 4,700 r/min and fails by smearing long before L10 fatigue.
• Wide (22/23) and light (10/49) executions at 50 mm bore share bore but not OD/width; check the full N400 series code before substituting, because housing and shoulder geometry will not interchange.
• Do not replace N410 with a deep-groove ball bearing on rating alone: line contact gives 143 kN radial capacity but the bearing cannot carry the thrust duty a ball bearing can and misalignment tolerance is only 3–4 arc-minutes.
• If the shaft must be located both ways, do not use N410 alone: pair it with a locating bearing or specify the NUP execution with the matching loose rib ring from the 2203E table.
• The 143/124 kN ratings, 15.1 kN Pu and 1970 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N410 (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.