594A-592XE bearing: complete specifications & equivalents
The 594A-592XE is a ANSI ABMA 19.2 radial bearing sized 95.25 x 147.638 x 35.717 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 95.25 mm |
| Outer diameter D | 147.638 mm |
| Width B | 35.717 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 199 kN |
| Basic static load rating C0 | 279 kN |
| Limiting speed (mechanical) | 2300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2090 g |
| Manufacturer designation | NTN 4T-594A/592XE |
| 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 | 3.75 in |
|---|---|
| Outer diameter D | 5.813 in |
| Width B | 1.406 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 26.2 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) | 113 of 148 |
| Bore above smallest 4t-inch-series size | 82.55 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 594A-592A | SKF | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | Model-number interchange per ISO 15; confirm dimensions, sealing and ratings in the supplier catalogue. |
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 594A-592XE model number is decoded
4T-594A/592XE is an NTN inch-series single-row tapered roller bearing: a separable cone-and-cup pair on the ABMA inch boundary plan, 95.25×147.638×35.717 mm (assembled width T), for a shaft of about 95.25 mm (3.75 in). The 4T prefix is NTN's tapered roller quality mark stamped on both parts; it is a brand mark, not a size code, so cross-references quote 594A/592XE without it. Contact-angle geometry of the pure-numeric inch family gives 4T-594A/592XE its radial/axial load split — at 199/279 kN the static rating is about 1.40× C, typical of inch tapered sets proportioned for combined duty. Housing fitment sequence for 4T-594A/592XE: press the 592XE cup square into the 147.638 mm seat first, then bring the 594A cone (on its 95.25 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Minimum load matters at speed: an unloaded 4T-594A/592XE run near 2,300 r/min lets the rollers skid; lightly spring-preload high-speed pair arrangements.
Typical equipment & failure modes
Common applications
- paper-machine and calender roll supports
- off-highway and forestry machine axles
- marine winch and deck-machinery shafts
- crusher and screening-plant eccentric shafts
Known failure patterns
- rib-face scoring when the thrust share of the combined load exceeds what the cone rib of this size carries
- cup creep and housing fretting when the cup seat is cut too loose for the rotating load
- flaking on one cone only when a bent shaft loads the O/X pair unevenly
- pressed-steel cage pocket wear from roller skid at light radial load and high speed
- edge loading when shaft deflection exceeds the few arc-minutes an adjusted pair tolerates
Selection pitfalls — read before you substitute
- Mount the 95.25 mm cone by induction heating (max 120 °C) and the 147.638 mm cup with a press sleeve; at 2090 g a cocked ring brinells the raceway directly.
- The pure-numeric inch family at 95.25 mm bore (147.638×35.717 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 594A/592XE reference at purchase.
- An unloaded 4T-594A/592XE near 2,300 r/min lets rollers skid and smear the cone rib; spring-preload lightly loaded high-speed pairs.
- Replacing one half of an adjusted pair without resetting end play negates the 35.717 mm T logic: re-adjust the set and re-verify the contact pattern rather than reusing the old spacer stack.
- Inch and metric bores collide on paper — 95.25 mm is 3.75 in, not a round metric size; a metric bearing that seems 0.1 mm off will not seat on the inch shaft.
- The 199/279 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-594A/592XE; 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-594A/592XE?
4T-594A/592XE is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 95.25 mm bore (3.75 in), 147.638 mm outside diameter and 35.717 mm assembled width T (5.813 × 1.406 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 199 kN, C0 279 kN, grease limiting speed 2,300 r/min, oil speed 3,100 r/min, mass about 2090 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-594A/592XE interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 594A cone or the 592XE 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 199/279 kN ratings change with the cup.
What is the difference between 4T-594A/592XE and a metric ISO 355 tapered bearing?
4T-594A/592XE 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 95.25×147.638×35.717 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-594A/592XE 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 594A/592XE references; the 4T spelling is retained among this page's search aliases.
Why does 4T-594A/592XE list two speeds, 2,300 and 3,100 r/min?
The lower figure, 2,300 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-594A/592XE at 3,100 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.