MRC QJ 307 Bearing_MRC QJ 307 Size and Details

MRC QJ 307 bearing

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MRC QJ 307 Bearing Details：

Bearing Name	QJ 307
New Model	QJ307
Old Model	176307 bearing
product Model	QJ307
Category	Angular Contact Ball Bearings
Brand	MRC Bearing
Inner Diameter d ( mm )	35
Outer Diameter D ( mm )	80
Thickness B ( mm )	21

MRC QJ 307 Bearing Bearing Size and Drawing：

MRC QJ 307 Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
FAG 31307 Bearing	35	80	21	FAG	Tapered Roller Bearings
RHP 6307-Z Bearing	35	80	21	RHP	Deep Groove Ball Bearings
NACHI 7307 C Bearing	35	80	21	NACHI	Angular Contact Ball Bearings
ZKL NU307 Bearing	35	80	21	ZKL	Cylindrical Roller Bearings
TORRINGTON 7307C Bearing	35	80	21	TORRINGTON	Angular Contact Ball Bearings
NSK NSKNJ307ET Bearing	35	80	21	NSK	Cylindrical Roller Bearings
TBS 7307BECBP* Bearing	35	80	21	TBS	Angular Contact Ball Bearings
NACHI 6307-2Z Bearing	35	80	21	NACHI	Deep Groove Ball Bearings
STEYR 6307-2Z Bearing	35	80	21	STEYR	Deep Groove Ball Bearings
FAG NJ 307 E.TVP2 +HJ307 E Bearing	35	80	21	FAG	Cylindrical Roller 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：NACHI 7314 B/ DT
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