N2207EA bearing: complete specifications & equivalents

The N2207EA is a ISO 15 radial bearing sized 35 x 72 x 23 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 72 mm d = 35 B = 23 mm side section front view
Principal dimensions: bore d 35 mm, outer diameter D 72 mm, width B 23 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand NTN
Bore diameter d 35 mm
Outer diameter D 72 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 73 kN
Basic static load rating C0 65.5 kN
Fatigue load limit Pu 7.95 kN
Limiting speed (mechanical) 8500 rpm
Operating temperature -40 to +120 °C
Mass 405 g
Manufacturer designation NTN N2207EA
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 & N2200-series range

Bore d 1.378 in
Outer diameter D 2.835 in
Width B 0.906 in
ISO bore code —
Radial section height (D−d)/2 18.5 mm
Smallest bore in N2200-series 20 mm
Largest outer diameter in N2200-series 580 mm
Width range across N2200-series 18–150 mm
Bore position in N2200-series (smallest first) 4 of 33
Bore above smallest N2200-series size 15 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
N2207EA 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 N2207EA model number is decoded

For pure radial duty on a 35 mm shaft NTN supplies N2207EA: two integral ribs on the inner ring and a ribless separable outer ring; the open execution is rated 8,500 r/min on grease and 12,000 r/min on oil. Numbering ties N2207EA to its envelope: type code N, series N2200, 35 mm bore; the 72×23 mm outline therefore swaps dimensionally with other ISO 15 bearings of the same code, though rib arrangements differ by prefix. Line contact between rollers and raceways gives N2207EA high radial capacity but no tolerance for misalignment: beyond roughly 3–4 arc-minutes the roller ends edge-load and fatigue accelerates. Mass 405 g for the 35×72×23 mm N2207EA execution covers the pressed-steel cage and full roller complement; substitute on mass plus rating, not envelope alone. Housing and shaft fillets must clear the ring chamfers of N2207EA; an oversized radius locks the ring on its face and tilts the 23 mm-wide seat.

Typical equipment & failure modes

Common applications

  • pump and compressor crankshafts and rotors
  • machine-tool gearbox and spindle radial sets
  • material-handling drum and wheel shafts
  • papermaking and printing auxiliary drives

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
  • electrical pitting on VFD-driven motor shafts without grounding protection
  • brinelling from static overload or impact during handling

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 N2207EA.
  • The 18.5 mm section at 35 mm bore leaves a narrow oil path; with the EA pressed-steel-cage cage the relubrication groove and oil-level design must keep grease from churning in the 23 mm-wide cavity.
  • The EA high-capacity roller complement changes the load figure versus the basic execution of the same number; the 73/65.5 kN pair here belongs to N2207EA as printed, not to the bare size.
  • Wide (22/23) and light (10/49) executions at 35 mm bore share bore but not OD/width; check the full N2200 series code before substituting, because housing and shoulder geometry will not interchange.
  • Wide (22/23) and light (10/49) executions at 35 mm bore share bore but not OD/width; check the full N2200 series code before substituting, because housing and shoulder geometry will not interchange.
  • The 73/65.5 kN ratings, 7.95 kN Pu and 405 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N2207EA (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 N2207EA?

N2207EA is an NTN N single-row cylindrical roller bearing to ISO 15: 35 mm bore, 72 mm OD and 23 mm width (1.378 × 2.835 × 0.906 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 73 kN, C0 65.5 kN, Pu 7.95 kN, grease limiting speed 8,500 r/min, oil 12,000 r/min, mass about 405 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. N2207EA is two integral ribs on the inner ring and a ribless separable outer ring — equivalent float behaviour with the separable ring on the housing side.

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 N2207EA take axial load and locate a shaft?

the N design is non-locating like NU but floats with the separable outer ring in the housing. Provide axial location with an adjacent locating bearing (angular-contact, deep-groove or a paired NJ/NUP set).

What do Fw and Ew mean for N2207EA?

Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 44 mm, Ew 64 mm. The nominal bore/OD remain 35/72 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 8,500 r/min grease / 12,000 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.