N2212 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 N2212 model number is decoded

N2212 belongs to the NTN cylindrical roller range in NTN Ball and Roller Bearings CAT.No.2203E, under the ＊ ULTAGE new-generation specification: line-contact rollers between ground raceways for a 107 kN dynamic rating in the 60 mm bore. Numbering ties N2212 to its envelope: type code N, series N2200, 60 mm bore; the 110×28 mm outline therefore swaps dimensionally with other ISO 15 bearings of the same code, though rib arrangements differ by prefix. Minimum radial load matters: an unloaded N2212 at high speed skids its rollers and smears the raceway; spring preload or the rotor weight typically covers the requirement in motors and pumps. Selection arithmetic: Pu 14.1 kN is the fatigue load limit feeding the adjusted-life equation, and the C0/C ratio of 1.08 (116/107 kN) shows the high-static-capacity proportioning of this 60 mm bore. After mounting verify the outer ring slides axially by hand at ambient temperature; a stuck float ring in a N2212 non-locating position preloads the bearing when the shaft grows.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Induction-heat the 60 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 110 mm raceway.
• The 25.0 mm section at 60 mm bore leaves a narrow oil path; with the standard cage the relubrication groove and oil-level design must keep grease from churning in the 28 mm-wide cavity.
• The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 107/116 kN pair here belongs to N2212 as printed, not to the bare size.
• The 28 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 60 mm inner ring.
• Do not replace N2212 with a deep-groove ball bearing on rating alone: line contact gives 107 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 107/116 kN ratings, 14.1 kN Pu and 1040 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N2212 (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.