NUP2319E bearing: complete specifications & equivalents
The NUP2319E is a ISO 15 radial bearing sized 95 x 200 x 67 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 95 mm |
| Outer diameter D | 200 mm |
| Width B | 67 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 510 kN |
| Basic static load rating C0 | 585 kN |
| Fatigue load limit Pu | 63 kN |
| Limiting speed (mechanical) | 2700 rpm |
| Operating temperature | -40 to +120 °C |
| Manufacturer designation | NTN NUP2319E |
| 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 & NUP2300-series range
| Bore d | 3.74 in |
|---|---|
| Outer diameter D | 7.874 in |
| Width B | 2.638 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 52.5 mm |
| Smallest bore in NUP2300-series | 20 mm |
| Largest outer diameter in NUP2300-series | 580 mm |
| Width range across NUP2300-series | 21–175 mm |
| Bore position in NUP2300-series (smallest first) | 16 of 31 |
| Bore above smallest NUP2300-series size | 75 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| NUP2319E | 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 NUP2319E model number is decoded
NUP2319E is the extra-wide (23) section of the NTN NUP2300 dimension series for a 95 mm shaft — 510 kN of basic dynamic capacity in a open bearing. Numbering ties NUP2319E to its envelope: type code NUP, series NUP2300, 95 mm bore; the 200×67 mm outline therefore swaps dimensionally with other ISO 15 bearings of the same code, though rib arrangements differ by prefix. the trailing E marks NTN high-capacity internal design at this larger bore, with the pressed-steel cage execution; quote the full NUP2319E designation when purchasing. Equivalent-load planning treats NUP2319E as a pure radial bearing: keep P below 510 kN at the required L10, and let a paired angular-contact or thrust part carry any sustained axial component. Housing and shaft fillets must clear the ring chamfers of NUP2319E; an oversized radius locks the ring on its face and tilts the 67 mm-wide seat.
Typical equipment & failure modes
Common applications
- large pump, turbine and compressor rotors
- rolling-mill auxiliary drive shafts
- crusher and vibrating-screen drive shafts
- marine gearbox and deck-machinery 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
- false brinelling on standby machines exposed to external vibration
- false brinelling on standby machines exposed to external vibration
Selection pitfalls — read before you substitute
- Induction-heat the 95 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 200 mm raceway.
- Minimum radial load is frequently missed in oversized motor and fan selections: an underloaded NUP2319E skids at 2,700 r/min and fails by smearing long before L10 fatigue.
- Grease limiting speed 2,700 r/min and oil 3,200 r/min are different limits for NUP2319E: the first is the cage/lubricant mechanical ceiling, the second assumes real oil flow rather than an oil bath.
- The 52.5 mm section at 95 mm bore leaves a narrow oil path; with the E high-capacity cage the relubrication groove and oil-level design must keep grease from churning in the 67 mm-wide cavity.
- The 67 mm width and abutment faces must be square to the axis; a tilted spacer concentrates load across the roller set and shows as uneven raceway polish on the 95 mm inner ring.
- The 510/585 kN ratings, 63 kN Pu are NTN Ball and Roller Bearings CAT.No.2203E values for NUP2319E (E high-capacity 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 NUP2319E?
NUP2319E is an NTN NUP single-row cylindrical roller bearing to ISO 15: 95 mm bore, 200 mm OD and 67 mm width (3.74 × 7.874 × 2.638 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 510 kN, C0 585 kN, Pu 63 kN, grease limiting speed 2,700 r/min, oil 3,200 r/min. It is open, with the high-capacity pressed-steel cage of the E execution.
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. NUP2319E 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. NUP2319E is supplied in the standard open execution shown in the table.
Can NUP2319E 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 NUP2319E?
Fw is the inner sub-assembly raceway/roller-set envelope diameter and Ew the outer-ring raceway diameter printed for geometric checks: Fw 121.5 mm. The nominal bore/OD remain 95/200 mm; Fw/Ew describe the rolling-contact path, and speeds still run to 2,700 r/min grease / 3,200 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.