BT2B334013-HA1 bearing: complete specifications & equivalents
The BT2B334013-HA1 is a ANSI ABMA 19.2 radial bearing sized 430 x 535 x 84 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 430 mm |
| Outer diameter D | 535 mm |
| Width B | 84 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1080 kN |
| Basic static load rating C0 | 3000 kN |
| Fatigue load limit Pu | 240 kN |
| Operating temperature | -40 to +120 °C |
| Mass | 44500 g |
| Manufacturer designation | SKF BT2B 334013/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 & tdi-series range
| Bore d | 16.929 in |
|---|---|
| Outer diameter D | 21.063 in |
| Width B | 3.307 in |
| ISO bore code | 13 |
| Radial section height (D−d)/2 | 52.5 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) | 24 of 25 |
| Bore above smallest tdi-series size | 226.8 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| BT2B334013 | 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 BT2B334013-HA1 model number is decoded
Selection arithmetic: C 1080 kN and C0 3000 kN are ratings of the complete double-row unit, giving a C0/C balance of 2.78; the fatigue load limit Pu 240 kN is the floor for the adjusted-life calculation at the 430 mm bore. Load system: C 1080 kN against C0 3000 kN gives a 2.78 balance, and 2.51 kN of dynamic capacity per millimetre of the 430 mm bore is the density figure to compare against neighbouring sizes. The TDI/Y2 execution of BT2B334013-HA1 differs from sibling variants in internal detail — spacer style, rib execution or clearance class — while sharing the 430×535×84 mm boundary; the full designation including the variant is the only safe order reference. In the TDI O-arrangement the spread of the two rows of BT2B334013-HA1 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.BT2B334013-HA1 is a double-row tapered roller bearing of the TDI design, listed by SKF in SKF catalogue PUB BU/P1 17000: one double cone between two single cups in a fixed O arrangement — a stiff, moment-resisting unit with the axial clearance set at the factory.Reading the designation: BT2B 334013 is the SKF double-row base number tied to the 430 mm bore and 535 mm OD, and the TDI/Y2 suffix identifies the internal design variant — cup/cone configuration, spacer execution and clearance class are encoded there rather than in a generic suffix. Load sharing between the two rows of BT2B334013-HA1 depends on the ground spacer; field re-grinding or mixing spacers from another unit — even of the same BT2B 334013 base — destroys the factory setting.
Typical equipment & failure modes
Common applications
- marine propulsion gearboxes
- large industrial mixer shafts
- offshore winch and drawworks drums
- wind-turbine main shafts
Known failure patterns
- unequal load sharing between the two roller rows when the centre spacer loses its factory grinding
- axial clamping ring bolt relaxation that lets the clearance-set rows walk apart under reversing thrust
- pressed-steel cage wear or fracture after prolonged running above the limiting speed
- grease degradation after long shelf storage without rotation or re-greasing
- brinelling from pressing the cone or cup home through the rollers
Selection pitfalls — read before you substitute
- 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 BT2B334013-HA1 installation with temperature logging.
- Contamination control matters twice over for double-row units: particles trapped between the rows of BT2B334013-HA1 cannot migrate out, so flush the housing before assembly and fit filtration matched to the oil flow.
- The 430 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 BT2B334013-HA1.
- The 1080/3000 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 334013/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 BT2B334013-HA1?
The SKF BT2B 334013/HA1 is a double-row tapered roller bearing of TDI design with 430 mm bore, 535 mm outer diameter and 84 mm overall width (16.929 × 21.063 × 3.307 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1080 kN, C0 3000 kN, fatigue load limit Pu 240 kN, mass about 44.50 kg.
What does the TDI/Y2 variant code on BT2B334013-HA1 mean?
Double-row tapered bearings of this size follow SKF works numbering: the base number BT2B 334013 fixes the 430×535×84 mm envelope, and the TDI/Y2 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 BT2B334013-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 44.5 kg assembly mass and instrument the first run with temperature logging.
Can components of BT2B334013-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 BT2B334013-HA1 as a complete assembly in the same TDI/Y2 variant.
How does BT2B334013-HA1 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.