22322EAD1 bearing: complete specifications & equivalents
The 22322EAD1 is a ISO 15 radial bearing sized 110 x 240 x 80 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 110 mm |
| Outer diameter D | 240 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 975 kN |
| Basic static load rating C0 | 972 kN |
| Fatigue load limit Pu | 59 kN |
| Limiting speed (mechanical) | 2000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 17000 g |
| Manufacturer designation | NTN 22322EAD1 |
| 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 & 22300-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 9.449 in |
| Width B | 3.15 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 65 mm |
| Smallest bore in 22300-series | 40 mm |
| Largest outer diameter in 22300-series | 620 mm |
| Width range across 22300-series | 33–185 mm |
| Bore position in 22300-series (smallest first) | 14 of 28 |
| Bore above smallest 22300-series size | 70 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22322EAKD1 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN 22300-series envelope, cage and ratings; this is the cylindrical-bore execution of the tapered-bore 22322EAKD1 (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 22322EAD1 model number is decoded
For heavy radial load with misalignment on a 110 mm shaft, NTN supplies 22322EAD1: sphered outer raceway, two roller rows, pressed sheet-steel window cage (EA high-capacity design), oil speed 2,400 r/min. On the NTN nameplate the suffix cluster after the size reads in order: cage design (EA), bore (cylindrical), lubrication feature (D1); 22322EAD1 is assembled exactly in that order. Suffix reading on 22322EAD1: EA identifies the high-capacity execution with a pressed sheet-steel window cage; the ＊ symbol in 2203E marks the ULTAGE new-generation specification (not part of the order code); and D1 provides the outer-ring lubrication feature; quote the full code because each suffix is a distinct article. The 65.0 mm section height hosts the spherical roller geometry; shaft and housing fillet radii must clear the chamfer table so the 80 mm-wide ring seats fully on both sides. Fillet radii on shaft and housing must clear the ring chamfers of the 80 mm-wide set; use the NTN shoulder/withdrawal-groove table rather than copying a ball-bearing layout.
Typical equipment & failure modes
Common applications
- large gearbox and marine gear shafts
- wind-turbine gearbox and rotor bearings
- large vibrating screens and mining feeders
- heavy conveyor and bucket-excavator pulleys
Known failure patterns
- lubricant starvation at the centre rib area when the D1/W33 groove is not connected to a relubrication supply
- cage damage when a mounting force is applied through the roller set instead of the ring face
- sliding wear and heat when relubrication intervals ignore the groove (D1/W33) supply path
- asymmetric wear on the two roller rows from sustained angular misalignment beyond the self-aligning range
- brinelling from static overload or a hammer blow during sleeve mounting
Selection pitfalls — read before you substitute
- Mount the 110 mm ring with induction heat or the sleeve drive-up procedure; at 17000 g cocking damages the spherical raceways, and repositioning after seating is impractical.
- Open spherical rollers swallow dust in mining duty; specify labyrinth or taconite seals externally, or the 2,000 r/min grease rating is lost to abrasive wear long before fatigue.
- Adapter-sleeve mounting requires the correct sleeve series and locknut for the 110 mm shaft; a sleeve sized to bore alone ignores thread, width and the oil-injection option on large K seats.
- Never substitute 22322EAD1 by envelope alone: the 972 kN C0 and 59 kN Pu are specific to the NTN EA pressed-steel-cage execution, and vibrating duty depends heavily on cage identity.
- The two roller rows must share load equally — a tilted spacer or unequal abutment on the 80 mm-wide ring loads one row only and shows as asymmetric race polish during inspection.
- The 975/972 kN ratings, 59 kN Pu and 17000 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for 22322EAD1 (EA pressed-steel-cage/D1); 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 22322EAD1?
22322EAD1 is an NTN double-row spherical roller bearing to ISO 15: 110 mm bore, 240 mm OD and 80 mm width (4.331 × 9.449 × 3.15 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 975 kN, C0 972 kN, Pu 59 kN, grease limiting speed 2,000 r/min, oil 2,400 r/min, mass about 17000 g. It is open, with pressed sheet-steel window cage (EA high-capacity design).
What is the difference between the K/K30 tapered bore and the cylindrical bore versions?
22322EAD1 has a cylindrical bore and mounts directly on a machined shaft seat. Its tapered-bore counterpart is 22322EAKD1 (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. 22322EAD1 is the EA pressed-steel-cage execution, listed with the ＊ ULTAGE new-generation mark.
What do D1 and W33 mean on 22322EAD1?
D1 is NTN's outer-ring lubrication feature: an annular groove with oil holes around the outer ring, aligned with a housing grease port so lubricant reaches both roller rows directly. 22322EAD1 carries D1; W33 is the equivalent industry-spelled annular-groove-and-holes feature seen on other executions.
How much misalignment and axial load can 22322EAD1 take?
The sphered outer raceway compensates static and dynamic misalignment in the order of 1–2° (verify the exact 2203E figure for the 22300 series); beyond that, load concentrates on one roller row. Load is predominantly radial with a moderate axial share in either direction — 975 kN C / 972 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.