N314EA 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 N314EA model number is decoded

The NTN order number N314EA denotes a 70×150×35 mm (2.756 × 5.906 × 1.378 in) cylindrical roller bearing in the N300 family, the EA high-capacity pressed sheet-steel cage. On the NTN nameplate N states which ring carries the ribs, which determines whether N314EA floats or locates; the numeric remainder is the ISO 15 series and 70 mm bore reference, not a fit or clearance instruction. NTN prints two speed ceilings: 4,200 r/min grease and 6,000 r/min oil — the pressed-steel cage and lubricant film set the real limit at the 70 mm bore. The 70 mm (2.756 in) bore and 150 mm (5.906 in) OD are ISO 15 boundary values; fillet and shoulder dimensions must still come from the NTN mounting table for the 35 mm-wide ring. After mounting verify the outer ring slides axially by hand at ambient temperature; a stuck float ring in a N314EA non-locating position preloads the bearing when the shaft grows.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Induction-heat the 70 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 150 mm raceway.
• If the shaft must be located both ways, do not use N314EA alone: pair it with a locating bearing or specify the NUP execution with the matching loose rib ring from the 2203E table.
• Do not replace N314EA with a deep-groove ball bearing on rating alone: line contact gives 242 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 EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 242/222 kN pair here belongs to N314EA as printed, not to the bare size.
• If the shaft must be located both ways, do not use N314EA alone: pair it with a locating bearing or specify the NUP execution with the matching loose rib ring from the 2203E table.
• The 242/222 kN ratings, 26.2 kN Pu and 2750 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N314EA (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.