NSK 7211B Bearing_NSK 7211B Size and Details

NSK 7211B bearing

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NSK 7211B Bearing Details：

Bearing Name	7211B
New Model	7211B
Old Model	66211 bearing
product Model	7211B
Category	Angular Contact Ball Bearings
Brand	NSK Bearing
Inner Diameter d ( mm )	55
Outer Diameter D ( mm )	100
Thickness B ( mm )	21

NSK 7211B Bearing Bearing Size and Drawing：

NSK 7211B Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
FAG 7211 AC Bearing	55	100	21	FAG	Angular Contact Ball Bearings
KOYO 6211-Z Bearing	55	100	21	KOYO	Deep Groove Ball Bearings
KOYO 6211 ZZ Bearing	55	100	21	KOYO	Deep Groove Ball Bearings
FAG NU211E Bearing	55	100	21	FAG	Cylindrical Roller Bearings
NTN 7211C Bearing	55	100	21	NTN	Angular Contact Ball Bearings
NACHI NJ 211 E Bearing	55	100	21	NACHI	Cylindrical Roller Bearings
TBS 7211C Bearing	55	100	21	TBS	Angular Contact Ball Bearings
TBS QJ 211 M A Bearing	55	100	21	TBS	Angular Contact Ball Bearings
FAG 7602055TVP Bearing	55	100	21	FAG	Angular Contact Thrust Ball Bearings
TBS NU211ECM* Bearing	55	100	21	TBS	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：NSK 7201B
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