413128 bearing: complete specifications & equivalents
The 413128 is a ANSI ABMA 19.2 radial bearing sized 140 x 225 x 68 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 140 mm |
| Outer diameter D | 225 mm |
| Width B | 68 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 410 kN |
| Basic static load rating C0 | 580 kN |
| Fatigue load limit Pu | 59 kN |
| Limiting speed (mechanical) | 1200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 9290 g |
| Manufacturer designation | NTN 4T-413128 |
| 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 | 5.512 in |
|---|---|
| Outer diameter D | 8.858 in |
| Width B | 2.677 in |
| ISO bore code | 28 |
| Radial section height (D−d)/2 | 42.5 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) | 18 of 41 |
| Bore above smallest 4t-430-series size | 100 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 413128 | 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 413128 model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, the order number 4T-413128 denotes the light-duty 430-family TDO double-row series — a 140 mm bore double-row tapered unit rated 410 kN basic dynamic and 580 kN static. With no letter suffix, 413128 is the basic open double-row execution: steel cages, factory-set internal clearance, no feature suffix in the order code. Speed planning uses both catalogue columns: grease 1,200 r/min is the mechanical ceiling, oil 1,700 r/min with oil lubrication — a 500 r/min margin at this size. Because the unit is preset, mounting 4T-413128 resembles mounting a double-row spherical or cylindrical bearing: seat the unit, clamp axially to the stated end cover torque, and verify rotation — no end-play measurement is required. Mount 4T-413128 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
- port-crane hoist and luffing gearboxes
- heavy press and forging-machine drives
- large shredder and recycler main shafts
- power-plant mill and fan shafts
Known failure patterns
- roller large-end smearing against the cone ribs when one row of the unit runs starved of lubricant
- 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
- thermal distress when the oil supply sized for one row starves the second row
Selection pitfalls — read before you substitute
- At 140 mm bore the 4T-413128 unit needs hydraulic or crane-assisted fitting and a verified oil supply; manual methods cannot control seating at the 410 kN C level.
- The 430 light plan keeps 4T-413128 narrower and faster than the 432 heavy execution of the same 140 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
- Order by the full 413128 code including suffixes — U, X, DX, E1 and UTG variants share the 140 mm bore but are different articles with different internal geometry.
- An unloaded 4T-413128 near 1,200 r/min lets rollers skid; ensure a minimum load or light spring preload on high-speed positions.
- The internal clearance of 4T-413128 is factory-set: no end-play adjustment exists at mounting, and any attempt to set preload with a shaft nut overloads one row.
- The 410/580 kN ratings and 59 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-413128; 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-413128?
4T-413128 is a double-row tapered roller bearing of TDO (back-to-back) construction: 140 mm bore, 225 mm outside diameter and 68 mm overall width. From NTN Ball and Roller Bearings CAT.No.2203E: C 410 kN, C0 580 kN, Cu 59 kN, grease limiting speed 1,200 r/min, oil speed 1,700 r/min, mass about 9.29 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 140 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-413128 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-413128 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 68 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 413128 mean?
With no letter suffix, 413128 is the basic open double-row execution: steel cages, factory-set internal clearance, no feature suffix in the order code.
Why does 4T-413128 list two speeds, 1,200 and 1,700 r/min?
The lower figure, 1,200 r/min, is the grease-lubricated limiting speed for the two rows and their cages. With oil lubrication NTN rates 4T-413128 at 1,700 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.