4395-4335 bearing: complete specifications & equivalents
The 4395-4335 is a ANSI ABMA 19.2 radial bearing sized 42.07 x 90.488 x 39.688 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 42.07 mm |
| Outer diameter D | 90.488 mm |
| Width B | 39.688 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 151 kN |
| Basic static load rating C0 | 175 kN |
| Limiting speed (mechanical) | 4300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1240 g |
| Manufacturer designation | NTN 4T-4395/4335 |
| 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 | 1.656 in |
|---|---|
| Outer diameter D | 3.563 in |
| Width B | 1.563 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 24.2 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) | 48 of 148 |
| Bore above smallest 4t-inch-series size | 29.37 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 4395 | 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 4395-4335 model number is decoded
4T-4395/4335 belongs to the NTN inch 4T tapered roller range (pure-numeric inch family); cone and cup are ordered by their own references and are individually interchangeable with like-numbered parts. Unlike ISO 355 metric numbers, this ABMA code does not encode the bore arithmetically: 4395 identifies the cone of 42.07 mm (1.656 in) bore by catalogue lookup, and 4335 fixes the 90.488 mm OD. Imperial cross-check for the drawing: 42.07×90.488×39.688 mm converts to 1.656 × 3.563 × 1.563 in; the ABMA envelope swaps with like-numbered inch parts but the 151/175 kN ratings are NTN-specific. The printed 151/175 kN ratings belong to the assembled 4395+4335 pair; a sibling row using the same cone with a different cup carries its own rating row because the raceway track shifts with the cup. With a rotating shaft a k5/m5 cone seat and an easy-push cup seat are typical practice for 4T-4395/4335; reverse the fit logic when the cup rotates.
Typical equipment & failure modes
Common applications
- machine-tool headstocks on inch spindles
- pump and blower drive shafts with combined load
- truck and trailer axle hubs on inch-dimensioned axles
- agricultural tractor transmission and PTO shafts
Known failure patterns
- rib-face scoring when the thrust share of the combined load exceeds what the cone rib of this size carries
- flaking on one cone only when a bent shaft loads the O/X pair unevenly
- cup creep and housing fretting when the cup seat is cut too loose for the rotating load
- cage fatigue when the pair runs continuously near the grease limiting speed without oil cooling
- indentation of the raceways by hard particles in an open, unsealed arrangement
Selection pitfalls — read before you substitute
- Hub and pinion positions of this 42.07 mm class are adjusted in pairs; verify end play against the axle or gearbox drawing and re-torque after bedding-in instead of trusting the first setting on 4T-4395/4335.
- The pure-numeric inch family at 42.07 mm bore (90.488×39.688 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 4395/4335 reference at purchase.
- Fit selection follows the rotating ring: a rotating cone on a 42.07 mm shaft takes a k5/m5 seat, and a rotating cup reverses the logic — decide from the load diagram, not from habit.
- ABMA makes the 42.07×90.488 mm envelope interchangeable, not the ratings: NTN prints 151/175 kN for this execution and another make of the same number can differ in roller complement.
- Replacing one half of an adjusted pair without resetting end play negates the 39.688 mm T logic: re-adjust the set and re-verify the contact pattern rather than reusing the old spacer stack.
- The 151/175 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-4395/4335; 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-4395/4335?
4T-4395/4335 is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 42.07 mm bore (1.656 in), 90.488 mm outside diameter and 39.688 mm assembled width T (3.563 × 1.563 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 151 kN, C0 175 kN, grease limiting speed 4,300 r/min, oil speed 5,800 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-4395/4335 interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 4395 cone or the 4335 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 151/175 kN ratings change with the cup.
What is the difference between 4T-4395/4335 and a metric ISO 355 tapered bearing?
4T-4395/4335 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 42.07×90.488×39.688 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-4395/4335 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 4395/4335 references; the 4T spelling is retained among this page's search aliases.
Why does 4T-4395/4335 list two speeds, 4,300 and 5,800 r/min?
The lower figure, 4,300 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-4395/4335 at 5,800 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.