N407 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 N407 model number is decoded

For pure radial duty on a 35 mm shaft NTN supplies N407: two integral ribs on the inner ring and a ribless separable outer ring; the open execution is rated 6,400 r/min on grease and 7,500 r/min on oil. Digit by digit, N407 reads as N (inner ring ribbed, outer ring ribless), ISO 15 series, and bore 35 mm; trailing letters such as EA or E mark the cage/capacity execution and are part of the order number. NTN prints the raceway diameters for this size — Fw 53 mm and Ew 83 mm — the envelope inside the 35/100 mm bore/OD where the rollers actually run. The 2.4 kN-per-mm-bore figure (83.5 kN over 35 mm) lets a N407 interchange candidate be screened quickly against the same-envelope ball or roller alternatives. Keep the open bearing wrapped until fitting: the line-contact raceways of the 35 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

• On this 35 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 N407.
• Never press either ring through the roller complement when fitting: mounting force goes through the ring faces, or the 100 mm race brinells and releases as vibration within hours.
• Grease limiting speed 6,400 r/min and oil 7,500 r/min are different limits for N407: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
• If the shaft must be located both ways, do not use N407 alone: pair it with a locating bearing or specify the NUP execution with the matching loose rib ring from the 2203E table.
• The N rib arrangement is not interchangeable with another prefix on the same 35 mm seat: inner ring ribbed, outer ring ribless. Swapping NU for NJ changes axial location behaviour even though the 100×25 mm envelope matches.
• The 83.5/69 kN ratings, 8.4 kN Pu and 965 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N407 (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.