NTN 7318 B Bearing_NTN 7318 B Size and Details

NTN 7318 B bearing

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NTN 7318 B Bearing Details：

Bearing Name	7318 B
New Model	7318B
Old Model	66318 bearing
product Model	7318B
Category	Angular Contact Ball Bearings
Brand	NTN Bearing
Inner Diameter d ( mm )	90
Outer Diameter D ( mm )	190
Thickness B ( mm )	43

NTN 7318 B Bearing Bearing Size and Drawing：

NTN 7318 B Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
NSK 1318 Bearing	90	190	43	NSK	Self-aligning Ball Bearings
KOYO 6318 Bearing	90	190	43	KOYO	Deep Groove Ball Bearings
TORRINGTON 21318 CCK Bearing	90	190	43	TORRINGTON	Spherical Roller Bearings
TBS QJ 318 Bearing	90	190	43	TBS	Angular Contact Ball Bearings
NACHI 6318 Bearing	90	190	43	NACHI	Deep Groove Ball Bearings
NACHI 21318 CCK Bearing	90	190	43	NACHI	Spherical Roller Bearings
TBS NUP 318 E Bearing	90	190	43	TBS	Cylindrical Roller Bearings
FAG 1318K Bearing	90	190	43	FAG	Self-aligning Ball Bearings
STEYR 7318B Bearing	90	190	43	STEYR	Angular Contact Ball Bearings
TBS 318-2Z Bearing	90	190	43	TBS	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.

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