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NTN BT4B 332981/HA4

Tapered · Open
Ø878Ø1220845
Bore
877.89 mm
Outside dia
1220 mm
Width
844.55 mm
Dynamic C
28100.0 kN
Static C0
76500.0 kN
Speed grease
2,000 rpm
Speed oil
3,000 rpm
Clearance
CN (Normal)
Precision
P0 (Class4)
Weight
3737.107 kg
Interactive view — 3D model + CAD files → Substitution sheet — printable →
Evidence

catalog-search · eligible · eval ship · deterministic executor · partsbrain pull 2026-09-08

Interchange family — 8 records

Part numberManufacturerBore×OD×WidthC
BT4B 332981/HA4FAG (Schaeffler)877.888×1220×844.5528100.0 kN
BT4B 332981/HA4Timken877.888×1220×844.5528100.0 kN
BT4B 332981/HA4RBC Bearings877.888×1220×844.5528100.0 kN
BT4B 332981/HA4Peer Bearing877.888×1220×844.5528100.0 kN
BT4B 332981/HA4KOYO (JTEKT)877.888×1220×844.5528100.0 kN
BT4B 332981/HA4INA (Schaeffler)877.888×1220×844.5528100.0 kN
BT4B 332981/HA4MinebeaMitsumi (NMB)877.888×1220×844.5528100.0 kN
BT4B 332981/HA4Nachi Fujikoshi877.888×1220×844.5528100.0 kN