KOYO 7220DF Bearing_KOYO 7220DF Size and Details

KOYO 7220DF bearing

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KOYO 7220DF Bearing Details：

Bearing Name	7220DF
New Model	7220DF
Old Model	346220 bearing
product Model	7220DF
Category	Angular Contact Ball Bearings
Brand	KOYO Bearing
Inner Diameter d ( mm )	95
Outer Diameter D ( mm )	170
Thickness B ( mm )	64

KOYO 7220DF Bearing Bearing Size and Drawing：

KOYO 7220DF Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
NSK 7219 C/ DT Bearing	95	170	64	NSK	Angular Contact Ball Bearings
RHP 7219C/DT Bearing	95	170	64	RHP	Angular Contact Ball Bearings
TBS 7219AC/DT Bearing	95	170	64	TBS	Angular Contact Ball Bearings
NACHI 7219 C/ DB Bearing	95	170	64	NACHI	Angular Contact Ball Bearings
NACHI 7219 B/ DT Bearing	95	170	64	NACHI	Angular Contact Ball Bearings
SNR 7219B/DF Bearing	95	170	64	SNR	Angular Contact Ball Bearings
TBS 7219C/DT Bearing	95	170	64	TBS	Angular Contact Ball Bearings
GMN 7219 AC/ DT Bearing	95	170	64	GMN	Angular Contact Ball Bearings
BARDEN 7219C/DT Bearing	95	170	64	BARDEN	Angular Contact Ball Bearings
NTN 7219C/DF Bearing	95	170	64	NTN	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.

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