NTN 71909C/DT Bearing_NTN 71909C/DT Size and Details

NTN 71909C/DT bearing

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NTN 71909C/DT Bearing Details：

Bearing Name	71909C/DT
New Model	71909C/DT
Old Model	1436909 bearing
product Model	71909C/DT
Category	Angular Contact Ball Bearings
Brand	NTN Bearing
Inner Diameter d ( mm )	45
Outer Diameter D ( mm )	68
Thickness B ( mm )	24

NTN 71909C/DT Bearing Bearing Size and Drawing：

NTN 71909C/DT Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
TBS 71909C/DT Bearing	45	68	24	TBS	Angular Contact Ball Bearings
GMN 71909 C/ DT Bearing	45	68	24	GMN	Angular Contact Ball Bearings
MRC 71909C/DB Bearing	45	68	24	MRC	Angular Contact Ball Bearings
NTN 71909C/DT Bearing	45	68	24	NTN	Angular Contact Ball Bearings
TBS 71909 C/ DF Bearing	45	68	24	TBS	Angular Contact Ball Bearings
NTN 71909 C/ DF Bearing	45	68	24	NTN	Angular Contact Ball Bearings
KOYO 7909 CDB Bearing	45	68	24	KOYO	Angular Contact Ball Bearings
KOYO 7909 CDF Bearing	45	68	24	KOYO	Angular Contact Ball Bearings
NSK 71909C/DB Bearing	45	68	24	NSK	Angular Contact Ball Bearings
KOYO 71909C/DB Bearing	45	68	24	KOYO	Angular Contact Ball Bearings

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What are the structural components and design advantages of angular contact ball bearings?

Angular contact ball bearings consist of an inner ring, outer ring, steel balls, and a cage. The raceways of the raceways are designed with a contact angle (typically 15°, 25°, or 40°) between the bearing rings and the steel balls. They offer advantages such as the ability to simultaneously withstand radial and unidirectional axial loads, high limiting speed, high precision, good rigidity, and the ability to withstand bidirectional axial loads when installed in pairs.

What are the advantages of angular contact ball bearings compared to other similar bearings?

Compared to deep groove ball bearings, angular contact ball bearings have a higher axial load capacity and higher rigidity, making them suitable for precision positioning applications. Compared to tapered roller bearings, they have a higher limiting speed and lower friction, making them more suitable for high-speed operation. Compared to thrust ball bearings, they can simultaneously withstand combined radial and axial loads, and when used in pairs, they maintain high rigidity under bidirectional axial loads without the need for additional radial bearings.

What are the applicable applications and typical uses of angular contact ball bearings?

These bearings are suitable for high-speed, high-rigidity mechanical applications requiring precise positioning and subjected to combined loads. Typical applications include machine tool spindles, automobile wheel hubs, centrifugal pumps, high-speed electric spindles, industrial robot joints, aero-engine spindles, and precision instrument turntables.

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