NTN QJ219 Bearing_NTN QJ219 Size and Details

NTN QJ219 bearing

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NTN QJ219 Bearing Details：

Bearing Name	QJ219
New Model	QJ219
Old Model	176219N2 bearing
product Model	QJ219
Category	Angular Contact Ball Bearings
Brand	NTN Bearing
Inner Diameter d ( mm )	95
Outer Diameter D ( mm )	170
Thickness B ( mm )	32

NTN QJ219 Bearing Bearing Size and Drawing：

NTN QJ219 Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
KOYO NU219R Bearing	95	170	32	KOYO	Cylindrical Roller Bearings
KOYO 30219 Bearing	95	170	32	KOYO	Tapered Roller Bearings
NACHI 6219-RZ Bearing	95	170	32	NACHI	Deep Groove Ball Bearings
KOYO 6219 Bearing	95	170	32	KOYO	Deep Groove Ball Bearings
NSK 1219K Bearing	95	170	32	NSK	Self-aligning Ball Bearings
NACHI NJ 320 E +HJ 322 E Bearing	95	170	32	NACHI	Cylindrical Roller Bearings
NACHI 7219AC Bearing	95	170	32	NACHI	Angular Contact Ball Bearings
TBS NJ219ECM* Bearing	95	170	32	TBS	Cylindrical Roller Bearings
NSK 1219 Bearing	95	170	32	NSK	Self-aligning Ball Bearings
NTN 6219-ZN Bearing	95	170	32	NTN	Deep Groove 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.

Preview：NTN QJ209
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