BT2B332505-HA2 bearing: complete specifications & equivalents

Specification table

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.

Cross references & equivalents

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 BT2B332505-HA2 model number is decoded

The SKF BT2B 332505/HA2 is a 355.6×444.5×136.525 mm TDO double-row tapered roller bearing — two roller rows on a common double cup, delivered clearance-set as one assembly weighing 46.0 kg.Reading the designation: BT2B 332505 is the SKF double-row base number tied to the 355.6 mm bore and 444.5 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. Clearance note for BT2B332505-HA2: the operating clearance is set at the factory by spacer grinding between the two rows; the TDO/XDC variant encodes that setting, so the unit mounts without any adjustment — the assembler only verifies seat contact and clamps axially. The catalogue publishes no speed ratings for this size class — permissible speed is set by the application thermal balance; plan lubrication and cooling against the 46.0 kg mass and the 444.5 mm OD surface. Journal and housing interface: the 355.6 mm bore takes a m6 shaft seat and the 444.5 mm outside diameter pairs with an H7 housing bore; the 136.525 mm width defines shoulder depth and the 46000 g mass is the dead load in thermal-growth calculations. When cross-referencing BT2B332505-HA2, note that the TDO/XDC variant is part of the SKF works designation: same-envelope units under another variant code can differ in clearance class and load rating even though d/D/T match. In the TDO X-arrangement the two cones of BT2B332505-HA2 locate the shaft in both axial directions; the housing seat for the 444.5 mm double cup is a loose-to-transition fit so thermal growth does not preload the rows.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• The 355.6 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 BT2B332505-HA2.
• Contamination control matters twice over for double-row units: particles trapped between the rows of BT2B332505-HA2 cannot migrate out, so flush the housing before assembly and fit filtration matched to the oil flow.
• Contamination control matters twice over for double-row units: particles trapped between the rows of BT2B332505-HA2 cannot migrate out, so flush the housing before assembly and fit filtration matched to the oil flow.
• The 1353/3650 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 332505/HA2 designation when purchasing — base-number-only orders are ambiguous across executions and variants.