BT2B332237A-HA1 bearing: complete specifications & equivalents
The BT2B332237A-HA1 is a ANSI ABMA 19.2 radial bearing sized 431.8 x 571.5 x 192.088 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 431.8 mm |
| Outer diameter D | 571.5 mm |
| Width B | 192.088 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 2847 kN |
| Basic static load rating C0 | 6950 kN |
| Fatigue load limit Pu | 530 kN |
| Operating temperature | -40 to +120 °C |
| Mass | 127000 g |
| Manufacturer designation | SKF BT2B 332237 A/HA1 |
| 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 & tdo-series range
| Bore d | 17 in |
|---|---|
| Outer diameter D | 22.5 in |
| Width B | 7.563 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 69.8 mm |
| Smallest bore in tdo-series | 101.6 mm |
| Largest outer diameter in tdo-series | 596.9 mm |
| Width range across tdo-series | 49.212–284 mm |
| Bore position in tdo-series (smallest first) | 23 of 23 |
| Bore above smallest tdo-series size | 330.20000000000005 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| BT2B332237A | 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 BT2B332237A-HA1 model number is decoded
Reading the designation: BT2B 332237 is the SKF double-row base number tied to the 431.8 mm bore and 571.5 mm OD, and the TDO/XDC suffix identifies the internal design variant — cup/cone configuration, spacer execution and clearance class are encoded there rather than in a generic suffix. Wear pattern reading at overhaul: the two rows of BT2B332237A-HA1 should show symmetric raceway contact; one-sided wear points to housing misalignment or a cocked seat rather than to a material defect. Dividing C 2847 kN by the 431.8 mm bore gives 6.59 kN per millimetre of journal — heavy-section density typical of double-row tapered units built for slow, heavily loaded shafts. Load system: C 2847 kN against C0 6950 kN gives a 2.44 balance, and 6.59 kN of dynamic capacity per millimetre of the 431.8 mm bore is the density figure to compare against neighbouring sizes. The TDO/XDC suffix on BT2B332237A-HA1 is a design-variant code in the SKF double-row numbering system; it identifies which internal configuration sits inside the 431.8×571.5×192.088 mm envelope. TDO mounting: the double cup is clamped in the housing and the two cones take interference on the 431.8 mm shaft; press force goes through the cone faces only — driving through the rollers brinells both raceways at once.In SKF catalogue PUB BU/P1 17000, BT2B332237A-HA1 appears as SKF BT2B 332237 A/HA1: a TDO-design double-row tapered roller bearing for a 431.8 mm shaft, rated C 2847 kN with the factory-set internal clearance of the TDO/XDC variant.
Typical equipment & failure modes
Common applications
- large crusher and mineral-processing drives
- wind-turbine main shafts
- marine propulsion gearboxes
- marine propulsion gearboxes
Known failure patterns
- water or scale ingress at the separable ring parting lines in roll-neck service
- brinelling of both raceways when mounting force is transmitted through the roller complement
- cage pocket scoring when the bearing starts cold with grease of too-high base-oil viscosity
- rib-roller contact scoring from loss of the EP additive film
- mounting score marks when the cone is cocked over the shaft keyway or a burr
Selection pitfalls — read before you substitute
- Contamination control matters twice over for double-row units: particles trapped between the rows of BT2B332237A-HA1 cannot migrate out, so flush the housing before assembly and fit filtration matched to the oil flow.
- Lifting BT2B332237A-HA1 by one ring separates the assembly; sling through the 431.8 mm bore or use the shaft as the lifting member.
- Lifting BT2B332237A-HA1 by one ring separates the assembly; sling through the 431.8 mm bore or use the shaft as the lifting member.
- The 2847/6950 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 BT2B 332237 A/HA1 designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of BT2B332237A-HA1?
The SKF BT2B 332237 A/HA1 is a double-row tapered roller bearing of TDO design with 431.8 mm bore, 571.5 mm outer diameter and 192.088 mm overall width (17 × 22.5 × 7.563 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 2847 kN, C0 6950 kN, fatigue load limit Pu 530 kN, mass about 127.00 kg.
What does the TDO/XDC variant code on BT2B332237A-HA1 mean?
Double-row tapered bearings of this size follow SKF works numbering: the base number BT2B 332237 fixes the 431.8×571.5×192.088 mm envelope, and the TDO/XDC 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 BT2B332237A-HA1?
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 127.0 kg assembly mass and instrument the first run with temperature logging.
Can components of BT2B332237A-HA1 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 BT2B332237A-HA1 as a complete assembly in the same TDO/XDC variant.
How does BT2B332237A-HA1 react axial load?
The TDO design works as a fixed X arrangement: one double cup with two cones locates the shaft in both axial directions, with load shared between the two rows according to the factory-set clearance.
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.