NF213EA bearing: complete specifications & equivalents
The NF213EA is a ISO 15 radial bearing sized 65 x 120 x 23 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 65 mm |
| Outer diameter D | 120 mm |
| Width B | 23 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 127 kN |
| Basic static load rating C0 | 119 kN |
| Fatigue load limit Pu | 14.5 kN |
| Limiting speed (mechanical) | 5400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1010 g |
| Manufacturer designation | NTN NF213EA |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
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.
Dimensions in inches & NF200-series range
| Bore d | 2.559 in |
|---|---|
| Outer diameter D | 4.724 in |
| Width B | 0.906 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in NF200-series | 20 mm |
| Largest outer diameter in NF200-series | 580 mm |
| Width range across NF200-series | 14–92 mm |
| Bore position in NF200-series (smallest first) | 10 of 34 |
| Bore above smallest NF200-series size | 45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NF213EA | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 NF213EA model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, NF213EA appears as a 65 mm bore single-row cylindrical roller bearing (127 kN C / 119 kN C0) with the EA high-capacity pressed sheet-steel cage, listed to the ISO 15 boundary plan. On the NTN nameplate NF states which ring carries the ribs, which determines whether NF213EA floats or locates; the numeric remainder is the ISO 15 series and 65 mm bore reference, not a fit or clearance instruction. Line contact between rollers and raceways gives NF213EA high radial capacity but no tolerance for misalignment: beyond roughly 3–4 arc-minutes the roller ends edge-load and fatigue accelerates. The 65 mm (2.559 in) bore and 120 mm (4.724 in) OD are ISO 15 boundary values; fillet and shoulder dimensions must still come from the NTN mounting table for the 23 mm-wide ring. Provide axial location with an adjacent locating bearing rather than expecting the float cylindrical set to hold thrust on the 65 mm shaft.
Typical equipment & failure modes
Common applications
- crusher and vibrating-screen drive shafts
- marine gearbox and deck-machinery shafts
- large electric-motor and generator rotors
- cement and mining conveyor drive pulleys
Known failure patterns
- inner-ring raceway spalling from overload in the line-contact Hertzian zone
- cage distortion after a mounting blow carried through the roller set
- micro-pitting when the EHL film falls below the composite roughness at high specific load
- hard-particle indentation of raceways in unfiltered oil or open arrangements
- hard-particle indentation of raceways in unfiltered oil or open arrangements
Selection pitfalls — read before you substitute
- Induction-heat the 65 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 120 mm raceway.
- The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 127/119 kN pair here belongs to NF213EA as printed, not to the bare size.
- Open NF213EA units need application-supplied sealing and a defined lubricant schedule; film thickness is the first failure mode for line contact when viscosity drops at the 65 mm contact.
- Never press either ring through the roller complement when fitting: mounting force goes through the ring faces, or the 120 mm race brinells and releases as vibration within hours.
- Wide (22/23) and light (10/49) executions at 65 mm bore share bore but not OD/width; check the full NF200 series code before substituting, because housing and shoulder geometry will not interchange.
- The 127/119 kN ratings, 14.5 kN Pu and 1010 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NF213EA (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.
Frequently asked questions
What are the dimensions and catalogue data of NF213EA?
NF213EA is an NTN NF single-row cylindrical roller bearing to ISO 15: 65 mm bore, 120 mm OD and 23 mm width (2.559 × 4.724 × 0.906 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 127 kN, C0 119 kN, Pu 14.5 kN, grease limiting speed 5,400 r/min, oil 7,600 r/min, mass about 1010 g. It is open, with the EA high-capacity pressed sheet-steel cage.
What is the difference between NU, NJ, NUP, N and NF cylindrical roller bearings?
The prefix states the rib arrangement: NU has two outer-ring ribs and a ribless inner ring (float, no axial load); NJ adds ribs for one-direction location; NUP adds a loose L-ring to locate both directions; N has two inner-ring ribs and a separable outer ring; NF has one rib per ring for one-direction guidance. NF213EA is one integral rib on each ring — separable inner ring with single-direction axial guidance and a defined shaft position.
What do the EA, E and ＊ suffixes mean on NTN cylindrical roller bearings?
EA is NTN's high-capacity design with a pressed sheet-steel cage and optimised roller complement in the same ISO 15 envelope; E marks the high-capacity design at the larger bores; the ＊ symbol printed before the code in the NTN catalogue marks the ULTAGE new-generation specification and is not typed as part of the order number. This page's bearing carries the EA pressed-steel-cage execution.
Can NF213EA take axial load and locate a shaft?
the NF design gives one-direction axial guidance via its single outer-ring rib. The loose rib ring still only suits light/short-duration axial guidance; heavy thrust belongs to a dedicated thrust bearing.
What do Fw and Ew mean for NF213EA?
Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 78.5 mm, Ew 108.5 mm. The nominal bore/OD remain 65/120 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 5,400 r/min grease / 7,600 r/min oil.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.