NTN 3219A Bearing_NTN 3219A Size and Details

NTN 3219A bearing

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NTN 3219A Bearing Details：

Bearing Name	3219A
New Model	3219A
Old Model	3256219 bearing
product Model	3219A
Category	Angular Contact Ball Bearings
Brand	NTN Bearing
Inner Diameter d ( mm )	95
Outer Diameter D ( mm )	170
Thickness B ( mm )	55.6

NTN 3219A Bearing Bearing Size and Drawing：

NTN 3219A Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
MRC 3219 Bearing	95	170	55.6	MRC	Angular Contact Ball Bearings
KOYO 3219 Bearing	95	170	55.6	KOYO	Angular Contact Ball Bearings
STEYR 3219 Bearing	95	170	55.6	STEYR	Angular Contact Ball Bearings
TBS 5219 A Bearing	95	170	55.6	TBS	Angular Contact Ball Bearings
TBS 5219A Bearing	95	170	55.6	TBS	Angular Contact Ball Bearings
NACHI 3219A Bearing	95	170	55.6	NACHI	Angular Contact Ball Bearings
FAG 3219 Bearing	95	170	55.6	FAG	Angular Contact Ball Bearings
NSK 3219 A Bearing	95	170	55.6	NSK	Angular Contact Ball Bearings
NTN 3219 Bearing	95	170	55.6	NTN	Angular Contact Ball Bearings
NTN 3219A Bearing	95	170	55.6	NTN	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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