MRC QJ 318 Bearing_MRC QJ 318 Size and Details

MRC QJ 318 bearing

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MRC QJ 318 Bearing Details：

Bearing Name	QJ 318
New Model	QJ318
Old Model	176318 bearing
product Model	QJ318
Category	Angular Contact Ball Bearings
Brand	MRC Bearing
Inner Diameter d ( mm )	90
Outer Diameter D ( mm )	190
Thickness B ( mm )	43

MRC QJ 318 Bearing Bearing Size and Drawing：

MRC QJ 318 Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
NACHI N318 Bearing	90	190	43	NACHI	Cylindrical Roller Bearings
KOYO 1318K Bearing	90	190	43	KOYO	Self-aligning Ball Bearings
FAG NU 318 E Bearing	90	190	43	FAG	Cylindrical Roller Bearings
FAG 30318 A+T2GB090 Bearing	90	190	43	FAG	Tapered Roller Bearings
TBS 7318 B Bearing	90	190	43	TBS	Angular Contact Ball Bearings
KOYO 6318N Bearing	90	190	43	KOYO	Deep Groove Ball Bearings
STEYR 6318N Bearing	90	190	43	STEYR	Deep Groove Ball Bearings
NTN 6318-RZ Bearing	90	190	43	NTN	Deep Groove Ball Bearings
FLT NU318 Bearing	90	190	43	FLT	Cylindrical Roller Bearings
KOYO NJ318 R Bearing	90	190	43	KOYO	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：STEYR QJ 317
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