BT2-8000-HA3 bearing: complete specifications & equivalents
The BT2-8000-HA3 is a ANSI ABMA 19.2 radial bearing sized 360 x 560 x 160 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 360 mm |
| Outer diameter D | 560 mm |
| Width B | 160 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 2556 kN |
| Basic static load rating C0 | 4650 kN |
| Fatigue load limit Pu | 390 kN |
| Operating temperature | -40 to +120 °C |
| Mass | 140000 g |
| Manufacturer designation | SKF BT2-8000/HA3 |
| 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 | 14.173 in |
|---|---|
| Outer diameter D | 22.047 in |
| Width B | 6.299 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 100 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) | 14 of 25 |
| Bore above smallest tdi-series size | 156.8 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| BT2 | 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 BT2-8000-HA3 model number is decoded
The TDIS/N suffix on BT2-8000-HA3 is a design-variant code in the SKF double-row numbering system; it identifies which internal configuration sits inside the 360×560×160 mm envelope. In the TDI O-arrangement the spread of the two rows of BT2-8000-HA3 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.In SKF catalogue PUB BU/P1 17000, BT2-8000-HA3 appears as SKF BT2-8000/HA3: a TDI-design double-row tapered roller bearing for a 360 mm shaft, rated C 2556 kN in the TDIS/N execution.Reading the designation: BT2-8000 is the SKF double-row base number tied to the 360 mm bore and 560 mm OD, and the TDIS/N suffix identifies the internal design variant — cup/cone configuration, spacer execution and clearance class are encoded there rather than in a generic suffix. Substitution checkpoint: another brand's double-row unit of the same 360×560×160 mm envelope may carry a different internal clearance class — match the TDIS/N execution meaning, not just the boundary dimensions, before swapping. The 100.0 mm radial section height ((560−360)/2) and 160 mm width frame a unit whose two rows share reversing thrust; keep the equivalent load P against the pair rating C 2556 kN, never against a single-row figure. Cross-section geometry: the 100.0 mm half-section ((560−360)/2) places the roller pitch diameter near 460 mm, and the 160 mm axial width sets the abutment depth — geometry that fixes the contact angle behaviour of BT2-8000-HA3.
Typical equipment & failure modes
Common applications
- offshore winch and drawworks drums
- rolling-mill roll-neck bearings
- heavy-duty rolling-mill gearboxes
- large crusher and mineral-processing drives
Known failure patterns
- water or scale ingress at the separable ring parting lines in roll-neck service
- water or scale ingress at the separable ring parting lines in roll-neck service
- 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
- hard-particle indentation of the tapered raceway in unfiltered oil
Selection pitfalls — read before you substitute
- Lifting BT2-8000-HA3 by one ring separates the assembly; sling through the 360 mm bore or use the shaft as the lifting member.
- The 360 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 BT2-8000-HA3.
- 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 BT2-8000-HA3 installation with temperature logging.
- The 2556/4650 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 BT2-8000/HA3 designation when purchasing — base-number-only orders are ambiguous across executions and variants.
Frequently asked questions
What are the dimensions and catalogue data of BT2-8000-HA3?
The SKF BT2-8000/HA3 is a double-row tapered roller bearing of TDI design with 360 mm bore, 560 mm outer diameter and 160 mm overall width (14.173 × 22.047 × 6.299 in). From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 2556 kN, C0 4650 kN, fatigue load limit Pu 390 kN, mass about 140.00 kg.
What does the TDIS/N variant code on BT2-8000-HA3 mean?
Double-row tapered bearings of this size follow SKF works numbering: the base number BT2-8000 fixes the 360×560×160 mm envelope, and the TDIS/N 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 BT2-8000-HA3?
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 140.0 kg assembly mass and instrument the first run with temperature logging.
Can components of BT2-8000-HA3 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 BT2-8000-HA3 as a complete assembly in the same TDIS/N variant.
How does BT2-8000-HA3 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.