430216XU bearing: complete specifications & equivalents
The 430216XU is a ANSI ABMA 19.2 radial bearing sized 80 x 140 x 64 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 80 mm |
| Outer diameter D | 140 mm |
| Width B | 64 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 305 kN |
| Basic static load rating C0 | 400 kN |
| Fatigue load limit Pu | 47.5 kN |
| Limiting speed (mechanical) | 2100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 3760 g |
| Manufacturer designation | NTN 4T-430216XU |
| 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 | 3.15 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 2.52 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 30 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) | 9 of 41 |
| Bore above smallest 4t-430-series size | 40 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 430216XU | 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 430216XU model number is decoded
4T-430216XU belongs to the light-duty 430-family TDO double-row series of NTN double-row tapered roller bearings; the unit is mounted as one article and its internal clearance is set at the factory, not on the shaft. Unlike a pair of single-row bearings, the TDO unit of 4T-430216XU integrates both rows in one article: the 64 mm overall width and the internal clearance are ground and set by NTN, so there is no field adjustment dimension. Grease relubrication at the 2,100 r/min limiting speed must reach both roller rows; sustaining 2,800 r/min needs an oil supply with defined flow through the double cup. TDO construction means the two cone assemblies of 4T-430216XU 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 80 mm shaft. Mount 4T-430216XU 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
- bulk-handling stacker/reclaimer travel drives
- large mixer and agitator shafts
- heavy gearbox and mill drive shafts
- crusher and screening-plant main shafts
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
- pressed-steel cage pocket wear from roller skid at light load and high speed
- false brinelling on a stored or standby unit exposed to vibration
Selection pitfalls — read before you substitute
- Mount the 80 mm unit by induction heating (max 120 °C); at 3.76 kg a cocked lift damages the cages and ribs before the bearing ever runs.
- The 430 light plan keeps 4T-430216XU narrower and faster than the 432 heavy execution of the same 80 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
- Open 4T-430216XU units have no seals: the housing must seal both rows or the 2,100 r/min grease figure is meaningless once contamination enters.
- The 305 kN C already includes two-row load sharing — do not double it when pairing the unit with a floating bearing in the L10 calculation.
- Grease packs must leave free volume across the 64 mm width; over-greasing a unit churning near the 2,800 r/min oil-band speed raises temperature and expels the grease.
- The 305/400 kN ratings and 47.5 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-430216XU; 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-430216XU?
4T-430216XU is a double-row tapered roller bearing of TDO (back-to-back) construction: 80 mm bore, 140 mm outside diameter and 64 mm overall width. From NTN Ball and Roller Bearings CAT.No.2203E: C 305 kN, C0 400 kN, Cu 47.5 kN, grease limiting speed 2,100 r/min, oil speed 2,800 r/min, mass about 3.76 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 80 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-430216XU 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-430216XU 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 64 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 430216XU mean?
Suffix reading on 430216XU: U marks the uprated/reinforced internal design, a separate order number with higher capacity than the basic execution; X marks the boundary-dimension revision of the base number (D and width differ from the plain number of the same bore); suffixed variants are separate order numbers and are not interchangeable articles.
Why does 4T-430216XU list two speeds, 2,100 and 2,800 r/min?
The lower figure, 2,100 r/min, is the grease-lubricated limiting speed for the two rows and their cages. With oil lubrication NTN rates 4T-430216XU at 2,800 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.