KOYO 7021AC Bearing_KOYO 7021AC Size and Details

KOYO 7021AC bearing

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KOYO 7021AC Bearing Details：

Bearing Name	7021AC
New Model	7021AC
Old Model	46121 bearing
product Model	7021AC
Category	Angular Contact Ball Bearings
Brand	KOYO Bearing
Inner Diameter d ( mm )	105
Outer Diameter D ( mm )	160
Thickness B ( mm )	26

KOYO 7021AC Bearing Bearing Size and Drawing：

KOYO 7021AC Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
NSK 6021 Bearing	105	160	26	NSK	Deep Groove Ball Bearings
NACHI 6021-2Z Bearing	105	160	26	NACHI	Deep Groove Ball Bearings
BARDEN 7021AC Bearing	105	160	26	BARDEN	Angular Contact Ball Bearings
KOYO NU1021 Bearing	105	160	26	KOYO	Cylindrical Roller Bearings
FAG NU1021M1 Bearing	105	160	26	FAG	Cylindrical Roller Bearings
FAG 7021C Bearing	105	160	26	FAG	Angular Contact Ball Bearings
TBS 6021 NR Bearing	105	160	26	TBS	Deep Groove Ball Bearings
NSK 6021-Z Bearing	105	160	26	NSK	Deep Groove Ball Bearings
NTN 6021-Z Bearing	105	160	26	NTN	Deep Groove Ball Bearings
NSK NSK6021NR Bearing	105	160	26	NSK	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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