N415 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 N415 model number is decoded

The NTN order number N415 denotes a 75×190×45 mm (2.953 × 7.48 × 1.772 in) cylindrical roller bearing in the N400 family, a pressed sheet-steel cage. Digit by digit, N415 reads as N (inner ring ribbed, outer ring ribless), ISO 15 series, and bore 75 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 104.5 mm and Ew 160.5 mm — the envelope inside the 75/190 mm bore/OD where the rollers actually run. Rating life at 291 kN C assumes clean oil and adequate film; the 30.5 kN Pu floor means contamination derating — not the C rating alone — governs adjusted life in dusty gearboxes. After mounting verify the outer ring slides axially by hand at ambient temperature; a stuck float ring in a N415 non-locating position preloads the bearing when the shaft grows.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Induction-heat the 75 mm inner ring (max 120 °C) and mount it before fitting the outer ring; the ring mass makes square guidance essential — driving through the rollers brinells the 190 mm raceway.
• Wide (22/23) and light (10/49) executions at 75 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 N415 with a deep-groove ball bearing on rating alone: line contact gives 291 kN radial capacity but the bearing cannot carry the thrust duty a ball bearing can and misalignment tolerance is only 3–4 arc-minutes.
• The 45 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 75 mm inner ring.
• The N rib arrangement is not interchangeable with another prefix on the same 75 mm seat: inner ring ribbed, outer ring ribless. Swapping NU for NJ changes axial location behaviour even though the 190×45 mm envelope matches.
• The 291/274 kN ratings, 30.5 kN Pu and 6060 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N415 (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.