469-454 bearing: complete specifications & equivalents
The 469-454 is a ANSI ABMA 19.2 radial bearing sized 57.15 x 110 x 27.795 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 57.15 mm |
| Outer diameter D | 110 mm |
| Width B | 27.795 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 127 kN |
| Basic static load rating C0 | 148 kN |
| Limiting speed (mechanical) | 3500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1240 g |
| Manufacturer designation | NTN 4T-469/454 |
| Standard | ANSI ABMA 19.2 |
| Catalog version | NTN 2203E 2026-09-25 |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN 2203E 2026-09-25) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN 2203E 2026-09-25); 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 & 4t-inch-series range
| Bore d | 2.25 in |
|---|---|
| Outer diameter D | 4.331 in |
| Width B | 1.094 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 26.4 mm |
| Smallest bore in 4t-inch-series | 12.7 mm |
| Largest outer diameter in 4t-inch-series | 260 mm |
| Width range across 4t-inch-series | 10.998–77.788 mm |
| Bore position in 4t-inch-series (smallest first) | 72 of 148 |
| Bore above smallest 4t-inch-series size | 44.45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 469-453X | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN cone 4T-469 paired with a different cup (453X): cone interchangeable, cup differs — OD, assembled width T and ratings follow the cup. Verify the full cone/cup reference before substituting. |
| 469-453A | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN cone 4T-469 paired with a different cup (453A): cone interchangeable, cup differs — OD, assembled width T and ratings follow the cup. Verify the full cone/cup reference 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 469-454 model number is decoded
The NTN 2203E inch table prints 4T-469/454 at 57.15 mm bore (2.25 in), 110 mm cup OD and 27.795 mm assembled T, with a grease limiting speed of 3,500 r/min and an oil ceiling of 4,700 r/min. The 4T prefix is NTN's tapered roller quality mark stamped on both parts; it is a brand mark, not a size code, so cross-references quote 469/454 without it. Grease relubrication at the 3,500 r/min limiting speed targets the cone-rib contact; sustaining 4,700 r/min needs an oil supply directed at the large roller ends. Cup-side note for 454: within the pure-numeric inch family tables the 469 cone is listed against several cup options, and it is the cup that fixes the 110 mm OD and the 27.795 mm assembled width — quote the full 469/454 pair, never the cone alone. With a rotating shaft a k5/m5 cone seat and an easy-push cup seat are typical practice for 4T-469/454; reverse the fit logic when the cup rotates.
Typical equipment & failure modes
Common applications
- heavy truck and bus drive-axle differentials
- plant gearboxes on inch-dimensioned shaft lines
- large conveyor head pulleys in bulk-handling plant
- paper-machine and calender roll supports
Known failure patterns
- rib-face scoring when the thrust share of the combined load exceeds what the cone rib of this size carries
- preload loss and noise after one bearing of the adjusted pair is replaced without resetting end play
- false brinelling on a stationary pair exposed to vibration during transport or standby
- cage fatigue when the pair runs continuously near the grease limiting speed without oil cooling
- brinell marks on cone and cup raceways from impact during handling or hammer fitting
Selection pitfalls — read before you substitute
- Mount the 57.15 mm cone by induction heating (max 120 °C) and the 110 mm cup with a press sleeve; at 1240 g a cocked ring brinells the raceway directly.
- The pure-numeric inch family at 57.15 mm bore (110×27.795 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 469/454 reference at purchase.
- An unloaded 4T-469/454 near 3,500 r/min lets rollers skid and smear the cone rib; spring-preload lightly loaded high-speed pairs.
- Fit selection follows the rotating ring: a rotating cone on a 57.15 mm shaft takes a k5/m5 seat, and a rotating cup reverses the logic — decide from the load diagram, not from habit.
- Fit selection follows the rotating ring: a rotating cone on a 57.15 mm shaft takes a k5/m5 seat, and a rotating cup reverses the logic — decide from the load diagram, not from habit.
- The 127/148 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-469/454; internal geometry legitimately differs between inch-series makers, so re-verify ratings, adjustment and the exact cone/cup references before substituting another brand on a rated drive.
Frequently asked questions
What are the dimensions and catalogue ratings of NTN 4T-469/454?
4T-469/454 is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 57.15 mm bore (2.25 in), 110 mm outside diameter and 27.795 mm assembled width T (4.331 × 1.094 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 127 kN, C0 148 kN, grease limiting speed 3,500 r/min, oil speed 4,700 r/min, mass about 1240 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-469/454 interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 469 cone or the 454 cup can be replaced by an identical reference from NTN or another ABMA-dimensioned maker. Pairing the cone with a different cup reference is a different catalogue row: OD, assembled T and the 127/148 kN ratings change with the cup.
What is the difference between 4T-469/454 and a metric ISO 355 tapered bearing?
4T-469/454 follows the ABMA inch boundary plan with cone/cup references; ISO 355 bearings use metric dimension-series numbers (302, 322, …). Even where a metric size looks close to 57.15×110×27.795 mm, the envelopes and contact angles differ — the two systems are not drop-in interchangeable; check every boundary value before substituting.
What does the 4T prefix on 4T-469/454 mean?
4T is NTN's tapered roller bearing quality mark, stamped on cone and cup in the factory. It identifies NTN's 4T programme and is not a dimension or variant code, so interchange lists quote the bare 469/454 references; the 4T spelling is retained among this page's search aliases.
Why does 4T-469/454 list two speeds, 3,500 and 4,700 r/min?
The lower figure, 3,500 r/min, is the grease-lubricated limiting speed — the mechanical ceiling for the cage, rollers and cone-rib contact. With oil lubrication NTN rates 4T-469/454 at 4,700 r/min because oil removes rib-contact heat better. Real limits still depend on pair adjustment, oil flow and cooling.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN 2203E 2026-09-25 on 2026-10-01. Read our editorial & correction policy.