23192B bearing: complete specifications & equivalents
The 23192B is a ISO 15 radial bearing sized 460 x 760 x 240 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 460 mm |
| Outer diameter D | 760 mm |
| Width B | 240 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 6350 kN |
| Basic static load rating C0 | 11400 kN |
| Fatigue load limit Pu | 775 kN |
| Limiting speed (mechanical) | 360 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 443000 g |
| Manufacturer designation | NTN 23192B |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); 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 & 23100-series range
| Bore d | 18.11 in |
|---|---|
| Outer diameter D | 29.921 in |
| Width B | 9.449 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 150 mm |
| Smallest bore in 23100-series | 100 mm |
| Largest outer diameter in 23100-series | 1420 mm |
| Width range across 23100-series | 52–412 mm |
| Bore position in 23100-series (smallest first) | 24 of 36 |
| Bore above smallest 23100-series size | 360 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 23192BK | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN 23100-series envelope, cage and ratings; this is the cylindrical-bore execution of the tapered-bore 23192BK (K/K30 sleeve or tapered-seat mounting). Verify shaft arrangement. |
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 23192B model number is decoded
The NTN order number 23192B identifies a 460×760×240 mm (18.11 × 29.921 × 9.449 in) spherical roller bearing, cylindrical bore, to the ISO 15 boundary plan. Numbering ties 23192B to its envelope and execution: same-number EA versus EM or plain variants share the 460 mm bore but differ in cage and sometimes mass, so they are quoted as separate articles. Two symmetric roller rows share the load: C 6350 kN, C0 11400 kN (C0/C ≈ 1.80), with useful axial capacity in either direction alongside the dominant radial load. Speed planning: 360 r/min grease limiting speed is the cage/kinematic ceiling and 470 r/min is the oil-lubricated value for the 460 mm bore; vibrating screens rarely approach either and are load/cage limited instead. Supply grease through the outer-ring feature during commissioning and at the calculated interval, rotating the 460 mm bore assembly by hand to distribute it across both rows.
Typical equipment & failure modes
Common applications
- heavy vibrating screens and grizzly feeders
- offshore and marine propulsion shaftlines
- large wind-turbine main-shaft arrangements
- steel-mill and heavy crusher main shafts
Known failure patterns
- lubricant starvation at the centre rib area when the D1/W33 groove is not connected to a relubrication supply
- pressed EA cage fatigue under sustained vibration when minimum load is not maintained
- roller-end smearing during skidding starts under light load and high viscosity grease
- fretting corrosion between adapter sleeve and tapered bore when the drive-up is insufficient
- water-induced pitting in washdown or outdoor duty without effective external seals
Selection pitfalls — read before you substitute
- At 460 mm bore 23192B is normally mounted on adapter/withdrawal sleeves with hydraulic assistance; follow the NTN drive-up angle or oil-injection procedure — manual nut tightening cannot set the multi-tonne seating correctly.
- Never substitute 23192B by envelope alone: the 11400 kN C0 and 775 kN Pu are specific to the NTN basic execution, and vibrating duty depends heavily on cage identity.
- The D1/W33 groove only helps if the housing has a matching grease passage; mounting a grooved 23192B in a solid block with no port wastes the feature and leaves the centre rows under-lubricated.
- Oil relubrication toward 470 r/min needs drain and level design; flooding the 240 mm cavity churns heat through the heavy roller set and cage despite the higher oil speed figure.
- Adapter-sleeve mounting requires the correct sleeve series and locknut for the 460 mm shaft; a sleeve sized to bore alone ignores thread, width and the oil-injection option on large K30 seats.
- The 6350/11400 kN ratings, 775 kN Pu and 443000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for 23192B (basic); another maker's same-envelope part revises internal geometry, so re-verify ratings and cage before substitution on vibrating or rated drives.
Frequently asked questions
What are the dimensions and catalogue data of 23192B?
23192B is an NTN double-row spherical roller bearing to ISO 15: 460 mm bore, 760 mm OD and 240 mm width (18.11 × 29.921 × 9.449 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 6350 kN, C0 11400 kN, Pu 775 kN, grease limiting speed 360 r/min, oil 470 r/min, mass about 443000 g. It is open, with pressed-steel cage (standard execution).
What is the difference between the K/K30 tapered bore and the cylindrical bore versions?
23192B has a cylindrical bore and mounts directly on a machined shaft seat. Its tapered-bore counterpart is 23192BK (K = 1:12, or K30 = 1:30 on the wide series), intended for adapter/withdrawal-sleeve mounting.
What do EA and EM mean on NTN spherical roller bearings?
EA is the NTN standard-capacity/high-capacity execution with a pressed sheet-steel window cage; EM is the high-capacity execution with a one-piece machined brass cage. Both use the optimised symmetric-roller design, but cage identity changes mass, speed behaviour and suitability for duties like vibrating screens, so they are separate order numbers. 23192B is the basic execution.
What do D1 and W33 mean on 23192B?
23192B is listed without a D1/W33 outer-ring groove in 2203E; lubrication is supplied from the ring sides. D1 (NTN spelling) and W33 add the annular groove plus holes and are ordered as distinct suffixed executions of the same envelope.
How much misalignment and axial load can 23192B take?
The sphered outer raceway compensates static and dynamic misalignment in the order of 1–2° (verify the exact 2203E figure for the 23100 series); beyond that, load concentrates on one roller row. Load is predominantly radial with a moderate axial share in either direction — 6350 kN C / 11400 kN C0 — but sustained pure axial load is not recommended because it unloads one row.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.