07100-07196 bearing: complete specifications & equivalents
The 07100-07196 is a ANSI ABMA 19.2 radial bearing sized 25.4 x 50.005 x 13.495 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 25.4 mm |
| Outer diameter D | 50.005 mm |
| Width B | 13.495 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 28.8 kN |
| Basic static load rating C0 | 27.9 kN |
| Limiting speed (mechanical) | 7500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 114 g |
| Manufacturer designation | NTN 4T-07100/07196 |
| 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 in |
|---|---|
| Outer diameter D | 1.969 in |
| Width B | 0.531 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 12.3 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) | 19 of 148 |
| Bore above smallest 4t-inch-series size | 12.7 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 07100-07204 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN cone 4T-07100 paired with a different cup (07204): cone interchangeable, cup differs — OD, assembled width T and ratings follow the cup. Verify the full cone/cup reference before substituting. |
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 07100-07196 model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, the order number 4T-07100/07196 denotes the pure-numeric inch family of NTN inch tapered roller bearings — cone 07100 and cup 07196 delivered as a matched, separable pair of 25.4 mm bore and 50.005 mm outside diameter. Letter prefixes inherited from the inch convention mark the load family: LM reads as light-medium, HM as heavy-medium, LL as extra-light, J-prefixed codes as metric-envelope families — 07100 sits in the pure-numeric inch family. Catalogue mass of the 4T-07100/07196 cone-plus-cup set is 114 g; shaft and housing shoulders must carry that mass square to the axis during fitting. Housing fitment sequence for 4T-07100/07196: press the 07196 cup square into the 50.005 mm seat first, then bring the 07100 cone (on its 25.4 mm shaft) into adjustment — the two references are separate engineering parts that happen to ship as one set. Mount the 25.4 mm cone with an induction heater (max 120 °C) and press the 50.005 mm cup with a sleeve; driving either ring through the rollers brinells the raceways.
Typical equipment & failure modes
Common applications
- pump and blower drive shafts with combined load
- truck and trailer axle hubs on inch-dimensioned axles
- agricultural tractor transmission and PTO shafts
- industrial gearboxes built to inch shafting
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
- fretting corrosion on a loose cone seat that creeps under rotating load
Selection pitfalls — read before you substitute
- Hub and pinion positions of this 25.4 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-07100/07196.
- The pure-numeric inch family at 25.4 mm bore (50.005×13.495 mm assembled) is one of several inch families sharing similar bores; cross-series swaps change OD, T and contact angle, so match the full 07100/07196 reference at purchase.
- An unloaded 4T-07100/07196 near 7,500 r/min lets rollers skid and smear the cone rib; spring-preload lightly loaded high-speed pairs.
- Shaft and housing fillets must clear the ring chamfers of 07100 and 07196; use undercut shoulders so the rings seat on the face, not on a radius.
- Never drive the 50.005 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 28.8/27.9 kN ratings here are NTN Ball and Roller Bearings CAT.No.2203E figures for 4T-07100/07196; 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-07100/07196?
4T-07100/07196 is an inch-series single-row tapered roller bearing to the ABMA boundary plan: 25.4 mm bore (1 in), 50.005 mm outside diameter and 13.495 mm assembled width T (1.969 × 0.531 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 28.8 kN, C0 27.9 kN, grease limiting speed 7,500 r/min, oil speed 10,000 r/min, mass about 114 g. It is an open, separable cone/cup set with a pressed-steel cage.
Are the cone and cup of 4T-07100/07196 interchangeable separately?
Yes — ABMA inch parts are individually interchangeable: the 07100 cone or the 07196 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 28.8/27.9 kN ratings change with the cup.
What is the difference between 4T-07100/07196 and a metric ISO 355 tapered bearing?
4T-07100/07196 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 25.4×50.005×13.495 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-07100/07196 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 07100/07196 references; the 4T spelling is retained among this page's search aliases.
Why does 4T-07100/07196 list two speeds, 7,500 and 10,000 r/min?
The lower figure, 7,500 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-07100/07196 at 10,000 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.