423096UTG bearing: complete specifications & equivalents
The 423096UTG is a ANSI ABMA 19.2 radial bearing sized 480 x 700 x 206 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 480 mm |
| Outer diameter D | 700 mm |
| Width B | 206 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 3900 kN |
| Basic static load rating C0 | 6700 kN |
| Fatigue load limit Pu | 480 kN |
| Limiting speed (mechanical) | 330 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 240000 g |
| Manufacturer designation | NTN 4T-423096UTG |
| 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-430-series range
| Bore d | 18.898 in |
|---|---|
| Outer diameter D | 27.559 in |
| Width B | 8.11 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 110 mm |
| Smallest bore in 4t-430-series | 40 mm |
| Largest outer diameter in 4t-430-series | 870 mm |
| Width range across 4t-430-series | 45–310 mm |
| Bore position in 4t-430-series (smallest first) | 38 of 41 |
| Bore above smallest 4t-430-series size | 440 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 423096UTG | 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 423096UTG model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, the order number 4T-423096UTG denotes the light-duty 430-family TDO double-row series — a 480 mm bore double-row tapered unit rated 3900 kN basic dynamic and 6700 kN static. Reading the designation: the last two digits 96 are the bore code, ×5 = 480 mm (codes 00–03 use the 10/12/15/17 exception table); the leading digits place the bearing in the light-duty 430-family TDO double-row series. The 110.0 mm radial section over the 480 mm bore carries two roller rows across the 206 mm width; abutment shoulders must clear both cone bores and the double-cup OD. TDO construction means the two cone assemblies of 4T-423096UTG face away from each other inside one double cup: the load lines diverge outward, giving a wide effective spread and high moment stiffness for the 480 mm shaft. Mount 4T-423096UTG as one article: lift on the double cup, never on a single cone, or the preset alignment of the two rows is disturbed.
Typical equipment & failure modes
Common applications
- heavy press and forging-machine drives
- large shredder and recycler main shafts
- power-plant mill and fan shafts
- rolling-mill roll-neck and pinion-stand positions
Known failure patterns
- edge loading on one row when the housing seats the double cup cocked across its width
- overheated running after a field attempt to "tighten up" the factory-set internal clearance
- one-row flaking when a bent shaft concentrates the combined load on a single row of the pair
- cage fatigue after continuous running near the grease limiting speed without oil cooling
- false brinelling on a stored or standby unit exposed to vibration
Selection pitfalls — read before you substitute
- At 480 mm bore the 4T-423096UTG unit needs hydraulic or crane-assisted fitting and a verified oil supply; manual methods cannot control seating at the 3900 kN C level.
- The 430 light plan keeps 4T-423096UTG narrower and faster than the 432 heavy execution of the same 480 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
- Grease packs must leave free volume across the 206 mm width; over-greasing a unit churning near the 470 r/min oil-band speed raises temperature and expels the grease.
- Open 4T-423096UTG units have no seals: the housing must seal both rows or the 330 r/min grease figure is meaningless once contamination enters.
- Lubricant must reach both rows: a housing groove aligned to the cup mid-width of 4T-423096UTG feeds the two roller complements evenly; a single-side feed starves the far row.
- The 3900/6700 kN ratings and 480 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-423096UTG; internal geometry legitimately differs between manufacturers, so re-verify ratings, clearance class and suffix before substituting another make on a rated drive.
Frequently asked questions
What are the dimensions and catalogue ratings of NTN 4T-423096UTG?
4T-423096UTG is a double-row tapered roller bearing of TDO (back-to-back) construction: 480 mm bore, 700 mm outside diameter and 206 mm overall width. From NTN Ball and Roller Bearings CAT.No.2203E: C 3900 kN, C0 6700 kN, Cu 480 kN, grease limiting speed 330 r/min, oil speed 470 r/min, mass about 240 kg. It is an open, preset-clearance unit with pressed-steel cages.
What is the difference between the NTN 430 and 432 double-row series at 480 mm bore?
Both are TDO double-row tapered roller units, but 430 is the light plan and 432 the heavy plan: at the same bore the 432 execution is wider and heavier with higher load ratings. 4T-423096UTG belongs to the light-duty 430-family TDO double-row series. Large sizes continue the plans as 4130/4131/4230/4231 (430 family) and 3230/3231 (432 family).
Can the internal clearance of 4T-423096UTG be adjusted at mounting?
No. The TDO unit — two cone assemblies against one double cup — is ground and set by NTN at the factory, and the 206 mm overall width is the finished dimension. Mounting sets no end play: seat the unit square, clamp the cup uniformly and verify free rotation. Field re-adjustment overloads one row.
What do the suffix letters on 423096UTG mean?
Suffix reading on 423096UTG: UTG marks the ULTAGE specification for large NTN tapered rollers — upgraded material and internal design, printed with the ＊ symbol ahead of the order number; suffixed variants are separate order numbers and are not interchangeable articles.
Why does 4T-423096UTG list two speeds, 330 and 470 r/min?
The lower figure, 330 r/min, is the grease-lubricated limiting speed for the two rows and their cages. With oil lubrication NTN rates 4T-423096UTG at 470 r/min because oil removes heat from both roller rows better — the housing feed must reach both rows through the double cup.
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.