N215 bearing: complete specifications & equivalents

The N215 is a ISO 15 radial bearing sized 75 x 130 x 25 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 = 130 mm d = 75 B = 25 mm side section front view
Principal dimensions: bore d 75 mm, outer diameter D 130 mm, width B 25 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand NTN
Bore diameter d 75 mm
Outer diameter D 130 mm
Width B 25 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage steel
Basic dynamic load rating C 107 kN
Basic static load rating C0 111 kN
Fatigue load limit Pu 13.4 kN
Limiting speed (mechanical) 5100 rpm
Operating temperature -40 to +120 °C
Mass 1210 g
Manufacturer designation NTN N215
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 & N200-series range

Bore d2.953 in
Outer diameter D5.118 in
Width B0.984 in
ISO bore code15
Radial section height (D−d)/227.5 mm
Smallest bore in N200-series17 mm
Largest outer diameter in N200-series580 mm
Width range across N200-series12–92 mm
Bore position in N200-series (smallest first)13 of 35
Bore above smallest N200-series size58 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
N215-ECP SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 75×130×25 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting.

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 N215 model number is decoded

In NTN Ball and Roller Bearings CAT.No.2203E, N215 appears as a 75 mm bore single-row cylindrical roller bearing (107 kN C / 111 kN C0) with a pressed sheet-steel cage, listed to the ISO 15 boundary plan. The leading N defines the rib arrangement (inner ring ribbed, outer ring ribless); the dimension-series digits and the two-digit bore code resolve to 75 mm, with 130 mm OD and 25 mm width from the ISO 15 general plan. Line contact between rollers and raceways gives N215 high radial capacity but no tolerance for misalignment: beyond roughly 3–4 arc-minutes the roller ends edge-load and fatigue accelerates. The 1.4 kN-per-mm-bore figure (107 kN over 75 mm) lets a N215 interchange candidate be screened quickly against the same-envelope ball or roller alternatives. Keep the open bearing wrapped until fitting: the line-contact raceways of the 75 mm bore indent under a single hard particle, and the steel cage provides no sealing of its own.

Typical equipment & failure modes

Common applications

  • heavy industrial gearbox and reducer shafts
  • large pump, turbine and compressor rotors
  • rolling-mill auxiliary drive shafts
  • crusher and vibrating-screen drive shafts

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
  • grease starvation and cage drag when relubrication intervals are extended past the grease life
  • rolling-contact fatigue after the catalogue L10 life is exceeded
  • rolling-contact fatigue after the catalogue L10 life is exceeded

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 130 mm raceway.
  • Never press either ring through the roller complement when fitting: mounting force goes through the ring faces, or the 130 mm race brinells and releases as vibration within hours.
  • Open N215 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 75 mm contact.
  • Never press either ring through the roller complement when fitting: mounting force goes through the ring faces, or the 130 mm race brinells and releases as vibration within hours.
  • Wide (22/23) and light (10/49) executions at 75 mm bore share bore but not OD/width; check the full N200 series code before substituting, because housing and shoulder geometry will not interchange.
  • The 107/111 kN ratings, 13.4 kN Pu and 1210 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for N215 (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.

Frequently asked questions

What are the dimensions and catalogue data of N215?

N215 is an NTN N single-row cylindrical roller bearing to ISO 15: 75 mm bore, 130 mm OD and 25 mm width (2.953 × 5.118 × 0.984 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 107 kN, C0 111 kN, Pu 13.4 kN, grease limiting speed 5,100 r/min, oil 6,000 r/min, mass about 1210 g. It is open, with a 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. N215 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. N215 is listed among the * ULTAGE-marked executions in 2203E.

Can N215 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 N215?

Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 88.5 mm, Ew 116.5 mm. The nominal bore/OD remain 75/130 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 5,100 r/min grease / 6,000 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.