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NTN 81122 Bearing Details：

Bearing Name 81122 New Model 81122 Old Model 9122 bearing product Model 81122 Category Thrust Roller Bearings Brand NTN Bearing Inner Diameter d ( mm ) 110 Outer Diameter D ( mm ) 145 Thickness B ( mm ) 25

NTN 81122 Bearing   Bearing Size and Drawing：

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
FAG 51122 Bearing	110	145	25	FAG	Thrust Ball Bearings
SNR 51122 Bearing	110	145	25	SNR	Thrust Ball Bearings
INA 81122 Bearing	110	145	25	INA	Thrust Roller Bearings
SNR 51122 Bearing	110	145	25	SNR	Thrust Ball Bearings
FAG 51122 Bearing	110	145	25	FAG	Thrust Ball Bearings
STEYR 51122 Bearing	110	145	25	STEYR	Thrust Ball Bearings
TBS 81 122 TN Bearing	110	145	25	TBS	Thrust Roller Bearings
TBS 81122TN Bearing	110	145	25	TBS	Thrust Roller Bearings
NSK 51122 Bearing	110	145	25	NSK	Thrust Ball Bearings
NTN 81122 Bearing	110	145	25	NTN	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.