413048UTG bearing: complete specifications & equivalents
The 413048UTG is a ANSI ABMA 19.2 radial bearing sized 240 x 360 x 92 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 240 mm |
| Outer diameter D | 360 mm |
| Width B | 92 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 840 kN |
| Basic static load rating C0 | 1160 kN |
| Fatigue load limit Pu | 101 kN |
| Limiting speed (mechanical) | 730 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 29100 g |
| Manufacturer designation | NTN 4T-413048UTG |
| 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 | 9.449 in |
|---|---|
| Outer diameter D | 14.173 in |
| Width B | 3.622 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 60 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) | 26 of 41 |
| Bore above smallest 4t-430-series size | 200 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 413048UTG | 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 413048UTG model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, the order number 4T-413048UTG denotes the light-duty 430-family TDO double-row series — a 240 mm bore double-row tapered unit rated 840 kN basic dynamic and 1160 kN static. Reading the designation: the last two digits 48 are the bore code, ×5 = 240 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. Speed planning uses both catalogue columns: grease 730 r/min is the mechanical ceiling, oil 1,000 r/min with oil lubrication — a 270 r/min margin at this size. The internal clearance of 4T-413048UTG is set at the factory by the double cup and spacer-less grinding; do not attempt to re-adjust it with shaft nuts — the 92 mm overall width is the finished dimension. The open unit carries no seals; the housing of 4T-413048UTG must provide sealing and the grease fill or oil feed to both rows.
Typical equipment & failure modes
Common applications
- large shredder and recycler main shafts
- power-plant mill and fan shafts
- rolling-mill roll-neck and pinion-stand positions
- mine hoist and dragline drum shafts
Known failure patterns
- roller large-end smearing against the cone ribs when one row of the unit runs starved of lubricant
- preload loss and hammering noise when the cup clamping loosens and the unit gains axial float
- brinelling of both rows from a mounting blow transmitted through the roller complements
- cage damage when the unit is lifted by one cone instead of the double cup during fitting
- fretting corrosion on a loose cone seat that creeps under rotating load
Selection pitfalls — read before you substitute
- At 240 mm bore the 4T-413048UTG unit needs hydraulic or crane-assisted fitting and a verified oil supply; manual methods cannot control seating at the 840 kN C level.
- The 430 light plan keeps 4T-413048UTG narrower and faster than the 432 heavy execution of the same 240 mm bore; where shock or a high thrust share dominates, verify whether the heavier 432-family row is the intended position.
- An unloaded 4T-413048UTG near 730 r/min lets rollers skid; ensure a minimum load or light spring preload on high-speed positions.
- Open 4T-413048UTG units have no seals: the housing must seal both rows or the 730 r/min grease figure is meaningless once contamination enters.
- An unloaded 4T-413048UTG near 730 r/min lets rollers skid; ensure a minimum load or light spring preload on high-speed positions.
- The 840/1160 kN ratings and 101 kN Cu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-413048UTG; 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-413048UTG?
4T-413048UTG is a double-row tapered roller bearing of TDO (back-to-back) construction: 240 mm bore, 360 mm outside diameter and 92 mm overall width. From NTN Ball and Roller Bearings CAT.No.2203E: C 840 kN, C0 1160 kN, Cu 101 kN, grease limiting speed 730 r/min, oil speed 1,000 r/min, mass about 29.1 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 240 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-413048UTG 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-413048UTG 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 92 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 413048UTG mean?
Suffix reading on 413048UTG: 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-413048UTG list two speeds, 730 and 1,000 r/min?
The lower figure, 730 r/min, is the grease-lubricated limiting speed for the two rows and their cages. With oil lubrication NTN rates 4T-413048UTG at 1,000 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.