NUP2217EA bearing: complete specifications & equivalents
The NUP2217EA is a ISO 15 radial bearing sized 85 x 150 x 36 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 85 mm |
| Outer diameter D | 150 mm |
| Width B | 36 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 257 kN |
| Basic static load rating C0 | 279 kN |
| Fatigue load limit Pu | 32.5 kN |
| Limiting speed (mechanical) | 3700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2520 g |
| Manufacturer designation | NTN NUP2217EA |
| 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 & NUP2200-series range
| Bore d | 3.346 in |
|---|---|
| Outer diameter D | 5.906 in |
| Width B | 1.417 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 32.5 mm |
| Smallest bore in NUP2200-series | 17 mm |
| Largest outer diameter in NUP2200-series | 580 mm |
| Width range across NUP2200-series | 16–150 mm |
| Bore position in NUP2200-series (smallest first) | 15 of 34 |
| Bore above smallest NUP2200-series size | 68 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NUP2217EA | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier. |
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 NUP2217EA model number is decoded
For pure radial duty on a 85 mm shaft NTN supplies NUP2217EA: the NJ rib arrangement plus a loose L-shaped rib ring on the inner ring; the open execution is rated 3,700 r/min on grease and 5,200 r/min on oil. On the NTN nameplate NUP states which ring carries the ribs, which determines whether NUP2217EA floats or locates; the numeric remainder is the ISO 15 series and 85 mm bore reference, not a fit or clearance instruction. NTN prints the raceway diameters for this size — Fw 100.5 mm and Ew 136.5 mm — the envelope inside the 85/150 mm bore/OD where the rollers actually run. Mass 2520 g for the 85×150×36 mm NUP2217EA execution covers the pressed-steel cage and full roller complement; substitute on mass plus rating, not envelope alone. After mounting verify the outer ring slides axially by hand at ambient temperature; a stuck float ring in a NUP2217EA non-locating position preloads the bearing when the shaft grows.
Typical equipment & failure modes
Common applications
- marine gearbox and deck-machinery shafts
- large electric-motor and generator rotors
- cement and mining conveyor drive pulleys
- heavy industrial gearbox and reducer shafts
Known failure patterns
- roller smearing (microwelding) at start-up before the oil film builds under insufficient radial load
- pressed-steel cage pocket wear when rollers skid at light load or too-thin lubricant
- grease starvation and cage drag when relubrication intervals are extended past the grease life
- hard-particle indentation of raceways in unfiltered oil or open arrangements
- electrical pitting on VFD-driven motor shafts without grounding protection
Selection pitfalls — read before you substitute
- Induction-heat the 85 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.
- The 32.5 mm section at 85 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 36 mm-wide cavity.
- Open NUP2217EA 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 85 mm contact.
- The NUP rib arrangement is not interchangeable with another prefix on the same 85 mm seat: inner ring two ribs + loose L-ring. Swapping NU for NJ changes axial location behaviour even though the 150×36 mm envelope matches.
- The NUP rib arrangement is not interchangeable with another prefix on the same 85 mm seat: inner ring two ribs + loose L-ring. Swapping NU for NJ changes axial location behaviour even though the 150×36 mm envelope matches.
- The 257/279 kN ratings, 32.5 kN Pu and 2520 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for NUP2217EA (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 NUP2217EA?
NUP2217EA is an NTN NUP single-row cylindrical roller bearing to ISO 15: 85 mm bore, 150 mm OD and 36 mm width (3.346 × 5.906 × 1.417 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 257 kN, C0 279 kN, Pu 32.5 kN, grease limiting speed 3,700 r/min, oil 5,200 r/min, mass about 2520 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. NUP2217EA is the NJ rib arrangement plus a loose L-shaped rib ring on the inner ring — it locates the shaft in both axial directions.
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 NUP2217EA take axial load and locate a shaft?
the NUP design provides two-direction axial location via its loose rib ring, for light/moderate thrust guidance. 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 NUP2217EA?
Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 100.5 mm, Ew 136.5 mm. The nominal bore/OD remain 85/150 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 3,700 r/min grease / 5,200 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.