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INA 81109 Bearing Details：

Bearing Name 81109 New Model 81109 Old Model 9109 bearing product Model 81109 Category Thrust Roller Bearings Brand INA Bearing Inner Diameter d ( mm ) 45 Outer Diameter D ( mm ) 65 Thickness B ( mm ) 14

INA 81109 Bearing   Bearing Size and Drawing：

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
KOYO 51109 Bearing	45	65	14	KOYO	Thrust Ball Bearings
NACHI 51109 Bearing	45	65	14	NACHI	Thrust Ball Bearings
NSK 51109 Bearing	45	65	14	NSK	Thrust Ball Bearings
SNR 51109 Bearing	45	65	14	SNR	Thrust Ball Bearings
INA 81109 Bearing	45	65	14	INA	Cylindrical Roller Bearings
NTN 51109 Bearing	45	65	14	NTN	Thrust Ball Bearings
STEYR 51109 Bearing	45	65	14	STEYR	Thrust Ball Bearings
RHP 51109 Bearing	45	65	14	RHP	Thrust Ball Bearings
FAG 51109 Bearing	45	65	14	FAG	Thrust Ball Bearings
INA 81109TN Bearing	45	65	14	INA	Cylindrical Roller Thrust 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.