95525-95925-NTN bearing: complete specifications & equivalents
The 95525-95925-NTN is a ANSI ABMA 19.2 radial bearing sized 136.525 x 234.95 x 63.5 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 136.525 mm |
| Outer diameter D | 234.95 mm |
| Width B | 63.5 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 580 kN |
| Basic static load rating C0 | 825 kN |
| Limiting speed (mechanical) | 1500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 11300 g |
| Manufacturer designation | NTN 4T-95525/95925 |
| 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 | 5.375 in |
|---|---|
| Outer diameter D | 9.25 in |
| Width B | 2.5 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 49.2 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) | 137 of 148 |
| Bore above smallest 4t-inch-series size | 123.825 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 95525-95925 | 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 95525-95925-NTN model number is decoded
4T-95525/95925 is an NTN inch-series single-row tapered roller bearing: a separable cone-and-cup pair on the ABMA inch boundary plan, 136.525×234.95×63.5 mm (assembled width T), for a shaft of about 136.525 mm (5.375 in). Cone and cup of 4T-95525/95925 are separately stocked parts: a worn 95925 cup can be replaced against the existing 95525 cone, provided the new cup carries the identical reference — pairing across references changes the 63.5 mm assembled width and the rating. Catalogue mass of the 4T-95525/95925 cone-plus-cup set is 11300 g; shaft and housing shoulders must carry that mass square to the axis during fitting. Housing fitment sequence for 4T-95525/95925: press the 95925 cup square into the 234.95 mm seat first, then bring the 95525 cone (on its 136.525 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Contact-pattern check with marking blue: a pattern biased to one roller end means the 136.525 mm pair is misadjusted and the set will edge-load in service.
Typical equipment & failure modes
Common applications
- heavy press and forging-machine drive shafts
- port-crane travel and hoist gearboxes
- cement-plant mill and kiln drive trains
- large shredder and recycler main shafts
Known failure patterns
- cone-rib and roller large-end smearing when the adjusted pair runs with preload but starved lubricant film
- false brinelling on a stationary pair exposed to vibration during transport or standby
- preload loss and noise after one bearing of the adjusted pair is replaced without resetting end play
- 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
- At 136.525 mm bore the 4T-95525/95925 set is adjusted with hydraulic nuts or measured shims on mill and crane positions; manual torque methods cannot control preload at the 580 kN C level.
- The pure-numeric inch family at 136.525 mm bore (234.95×63.5 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 95525/95925 reference at purchase.
- Shaft and housing fillets must clear the ring chamfers of 95525 and 95925; use undercut shoulders so the rings seat on the face, not on a radius.
- Open 4T-95525/95925 sets have no seals: a hub or gearbox needs external sealing or the 1,500 r/min grease figure is meaningless once water reaches the cone rib.
- Never drive the 234.95 mm cup home through the rollers: fitting force goes through the ring faces only, or brinell marks release as noise within the first running hours.
- The 580/825 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-95525/95925; 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-95525/95925?
4T-95525/95925 is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 136.525 mm bore (5.375 in), 234.95 mm outside diameter and 63.5 mm assembled width T (9.25 × 2.5 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 580 kN, C0 825 kN, grease limiting speed 1,500 r/min, oil speed 2,000 r/min, mass about 11300 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-95525/95925 interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 95525 cone or the 95925 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 580/825 kN ratings change with the cup.
What is the difference between 4T-95525/95925 and a metric ISO 355 tapered bearing?
4T-95525/95925 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 136.525×234.95×63.5 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-95525/95925 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 95525/95925 references; the 4T spelling is retained among this page's search aliases.
Why does 4T-95525/95925 list two speeds, 1,500 and 2,000 r/min?
The lower figure, 1,500 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-95525/95925 at 2,000 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.