367-362A bearing: complete specifications & equivalents
The 367-362A is a ANSI ABMA 19.2 radial bearing sized 45 x 88.9 x 20.638 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 45 mm |
| Outer diameter D | 88.9 mm |
| Width B | 20.638 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 85 kN |
| Basic static load rating C0 | 90.5 kN |
| Limiting speed (mechanical) | 4100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 600 g |
| Manufacturer designation | NTN 4T-367/362A |
| 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 | 1.772 in |
|---|---|
| Outer diameter D | 3.5 in |
| Width B | 0.813 in |
| ISO bore code | 67 |
| Radial section height (D−d)/2 | 22 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) | 53 of 148 |
| Bore above smallest 4t-inch-series size | 32.3 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 367 | 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 367-362A model number is decoded
NTN supplies this 1.772 in (45 mm) shaft position as 4T-367/362A: cone 367, cup 362A, profiled rollers and a pressed-steel cage, rated 85 kN basic dynamic and 90.5 kN static. Unlike ISO 355 metric numbers, this ABMA code does not encode the bore arithmetically: 367 identifies the cone of 45 mm (1.772 in) bore by catalogue lookup, and 362A fixes the 88.9 mm OD. The 22.0 mm radial section over the 45 mm bore positions the contact line of the pair; abutment shoulders and spacers are dimensioned from that geometry, not from the bore alone. Housing fitment sequence for 4T-367/362A: press the 362A cup square into the 88.9 mm seat first, then bring the 367 cone (on its 45 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Running clearance of 4T-367/362A is set at mounting by axial displacement of cone or cup — the catalogue does not ship a preloaded set, so the drawing must state end play or preload.
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
- cone-rib and roller large-end smearing when the adjusted pair runs with preload but starved lubricant film
- preload loss and noise after one bearing of the adjusted pair is replaced without resetting end play
- false brinelling on a stationary pair exposed to vibration during transport or standby
- cage damage from a mounting blow transmitted through the roller complement
- fretting corrosion on a loose cone seat that creeps under rotating load
Selection pitfalls — read before you substitute
- Hub and pinion positions of this 45 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-367/362A.
- The pure-numeric inch family at 45 mm bore (88.9×20.638 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 367/362A reference at purchase.
- Quote the full 367/362A pair at ordering: the 367 cone also ships against sibling cups, and a cup from another reference changes the 20.638 mm assembled width and the rating.
- Open 4T-367/362A sets have no seals: a hub or gearbox needs external sealing or the 4,100 r/min grease figure is meaningless once water reaches the cone rib.
- ABMA makes the 45×88.9 mm envelope interchangeable, not the ratings: NTN prints 85/90.5 kN for this execution and another make of the same number can differ in roller complement.
- The 85/90.5 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-367/362A; 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-367/362A?
4T-367/362A is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 45 mm bore (1.772 in), 88.9 mm outside diameter and 20.638 mm assembled width T (3.5 × 0.813 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 85 kN, C0 90.5 kN, grease limiting speed 4,100 r/min, oil speed 5,500 r/min, mass about 600 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-367/362A interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 367 cone or the 362A 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 85/90.5 kN ratings change with the cup.
What is the difference between 4T-367/362A and a metric ISO 355 tapered bearing?
4T-367/362A 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 45×88.9×20.638 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-367/362A 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 367/362A references; the 4T spelling is retained among this page's search aliases.
Why does 4T-367/362A list two speeds, 4,100 and 5,500 r/min?
The lower figure, 4,100 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-367/362A at 5,500 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.