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INA 81280 Bearing Details：

Bearing Name 81280 New Model 81280 Old Model 9280 bearing product Model 81280 Category Thrust Roller Bearings Brand INA Bearing Inner Diameter d ( mm ) 400 Outer Diameter D ( mm ) 540 Thickness B ( mm ) 112

INA 81280 Bearing   Bearing Size and Drawing：

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
TBS 81280M Bearing	400	540	112	TBS	Thrust Roller Bearings
TBS 81280 Bearing	400	540	112	TBS	Thrust Roller Bearings
FAG 81280 Bearing	400	540	112	FAG	Thrust Roller Bearings
TBS 81280 M Bearing	400	540	112	TBS	Thrust Roller Bearings
FAG 81280 Bearing	400	540	112	FAG	Thrust Roller Bearings
INA 81280 Bearing	400	540	112	INA	Thrust Roller Bearings
TBS 51280F Bearing	400	540	112	TBS	Thrust Ball Bearings
INA 81280 Bearing	400	540	112	INA	Thrust Roller Bearings
TBS 51280 F Bearing	400	540	112	TBS	Thrust Ball Bearings
FAG 81280 Bearing	400	540	112	FAG	Thrust Roller Bearings

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Thrust roller bearings (including thrust cylindrical roller, thrust tapered roller, and thrust self-aligning roller bearings) mainly consist of a shaft ring, a housing ring, rollers, and a cage.
They employ a line contact design and offer advantages such as extremely high axial load capacity, good rigidity, impact resistance, and the ability to withstand certain radial loads (thrust tapered roller bearings) or possess self-aligning functionality (thrust self-aligning roller bearings). Compared to thrust ball bearings, their axial load capacity and impact resistance are significantly stronger. Compared to thrust cylindrical roller bearings, thrust tapered roller bearings can withstand additional radial loads, while thrust self-aligning roller bearings can compensate for alignment errors, making them suitable for heavy-duty applications requiring higher load capacity, rigidity, and adaptability to operating conditions. These bearings are primarily used in heavy-load, low-speed, or medium-speed applications requiring the withstand of enormous axial thrust. Typical applications include ship propeller thrust shafts, large vertical turbine main shafts, heavy-duty crane slewing mechanisms, oil drilling rig rotary tables, rolling mill pressing mechanisms, large gearboxes, and hydraulic presses.