NSK 7312 B Bearing_NSK 7312 B Size and Details

NSK 7312 B bearing

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NSK 7312 B Bearing Details：

Bearing Name	7312 B
New Model	7312B
Old Model	66312 bearing
product Model	7312B
Category	Angular Contact Ball Bearings
Brand	NSK Bearing
Inner Diameter d ( mm )	60
Outer Diameter D ( mm )	130
Thickness B ( mm )	31

NSK 7312 B Bearing Bearing Size and Drawing：

NSK 7312 B Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
KOYO NU312R Bearing	60	130	31	KOYO	Cylindrical Roller Bearings
FAG 21312CCK Bearing	60	130	31	FAG	Spherical Roller Bearings
NSK 30312 Bearing	60	130	31	NSK	Tapered Roller Bearings
NACHI 21312CCK Bearing	60	130	31	NACHI	Spherical Roller Bearings
NSK 6312-2RS Bearing	60	130	31	NSK	Deep Groove Ball Bearings
NSK QJ312 Bearing	60	130	31	NSK	Angular Contact Ball Bearings
NSK QJ 312 Bearing	60	130	31	NSK	Deep Groove Ball Bearings
NSK 1312 K Bearing	60	130	31	NSK	Self-aligning Ball Bearings
KOYO N312 Bearing	60	130	31	KOYO	Cylindrical Roller Bearings
TBS 7312BEGBM* Bearing	60	130	31	TBS	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.

Preview：NTN 7220 B
Next：NTN 7240 B

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