332240A bearing: complete specifications & equivalents
The 332240A is a ANSI ABMA 19.2 radial bearing sized 343.052 x 457.098 x 122.238 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 343.052 mm |
| Outer diameter D | 457.098 mm |
| Width B | 122.238 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1610 kN |
| Basic static load rating C0 | 3400 kN |
| Fatigue load limit Pu | 280 kN |
| Operating temperature | -40 to +120 °C |
| Mass | 54000 g |
| Manufacturer designation | SKF 332240 A |
| Standard | ANSI ABMA 19.2 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants |
| Last verified | 2026-09-29 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants) · extracted 2026-09-29
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & tdi-series range
| Bore d | 13.506 in |
|---|---|
| Outer diameter D | 17.996 in |
| Width B | 4.813 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 57 mm |
| Smallest bore in tdi-series | 203.2 mm |
| Largest outer diameter in tdi-series | 595 mm |
| Width range across tdi-series | 84–263.525 mm |
| Bore position in tdi-series (smallest first) | 12 of 25 |
| Bore above smallest tdi-series size | 139.85200000000003 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 332240A | 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 332240A model number is decoded
In the TDI O-arrangement the spread of the two rows of 332240A gives high moment stiffness; the cups must be free to float microscopically in the housing so shaft thermal growth does not consume the factory clearance.Ordering number SKF 332240 A in SKF catalogue PUB BU/P1 17000 denotes a TDI double-row tapered roller bearing for a 343.052 mm shaft: double cone, two single cups, factory-set internal clearance in the TDI/GWIY2 variant.Digit by digit, 332240A breaks into the base number 332240 — the 343.052×457.098×122.238 mm boundary — and the TDI/GWIY2 variant code, which is part of the order designation and must be quoted in full at purchase. Clearance note for 332240A: the operating clearance is set at the factory by spacer grinding between the two rows; the TDI/GWIY2 variant encodes that setting, so the unit mounts without any adjustment — the assembler only verifies seat contact and clamps axially. Selection arithmetic: C 1610 kN and C0 3400 kN are ratings of the complete double-row unit, giving a C0/C balance of 2.11; the fatigue load limit Pu 280 kN is the floor for the adjusted-life calculation at the 343.052 mm bore. Cross-section geometry: the 57.0 mm half-section ((457.098−343.052)/2) places the roller pitch diameter near 400 mm, and the 122.238 mm axial width sets the abutment depth — geometry that fixes the contact angle behaviour of 332240A. Variant check: catalogue siblings of 332240A carry different variant suffixes at the same boundary dimensions; the TDI/GWIY2 code on this unit is not a cosmetic mark — it fixes the internal setting and must match on replacement.
Typical equipment & failure modes
Common applications
- heavy-duty rolling-mill gearboxes
- large crusher and mineral-processing drives
- wind-turbine main shafts
- offshore winch and drawworks drums
Known failure patterns
- thermal clearance loss when housing cooling is undersized for two rows of tapered contact
- axial clamping ring bolt relaxation that lets the clearance-set rows walk apart under reversing thrust
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- rolling-contact fatigue spalling after the rated L10 life is exceeded
- hard-particle indentation of the tapered raceway in unfiltered oil
Selection pitfalls — read before you substitute
- Lifting 332240A by one ring separates the assembly; sling through the 343.052 mm bore or use the shaft as the lifting member.
- The 343.052 mm bore seat must be checked for ovality before mounting — at this size a worn seat lets the cone creep, and fretting debris then works between the rows of 332240A.
- Catalogue tables for this size class list no reference speed: derive permissible speed from the application heat balance, and instrument the first run of a 332240A installation with temperature logging.
- The 1610/3400 kN ratings are SKF catalogue 17000 values for this execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification.
- Quote the full SKF 332240 A designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of 332240A?
The SKF 332240 A is a double-row tapered roller bearing of TDI design with 343.052 mm bore, 457.098 mm outer diameter and 122.238 mm overall width (13.506 × 17.996 × 4.813 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1610 kN, C0 3400 kN, fatigue load limit Pu 280 kN, mass about 54.00 kg.
What does the TDI/GWIY2 variant code on 332240A mean?
Double-row tapered bearings of this size follow SKF works numbering: the base number 332240 fixes the 343.052×457.098×122.238 mm envelope, and the TDI/GWIY2 code identifies the internal design variant — spacer execution, rib detail and clearance class. Same-envelope units under a different variant are not interchangeable without checking the variant meaning.
Why does the catalogue list no speed rating for 332240A?
Bearings of this size class run in slow, heavily loaded machinery where the permissible speed is set by the application heat balance rather than a universal table value. Plan lubrication and cooling against the 54.0 kg assembly mass and instrument the first run with temperature logging.
Can components of 332240A be interchanged with another unit of the same base number?
No — cones, cups and spacers of a double-row set are matched per serial and the clearance is set by selective grinding at the factory. Replace 332240A as a complete assembly in the same TDI/GWIY2 variant.
How does 332240A react axial load?
The TDI design works as a fixed O arrangement: one double cone between two single cups gives a wide load spread and high moment stiffness while reacting thrust in both directions through the two rows.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 8.3-8.8 TRB variants on 2026-09-29. Read our editorial & correction policy.