NTN 7238 AC Bearing_NTN 7238 AC Size and Details

NTN 7238 AC bearing

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NTN 7238 AC Bearing Details：

Bearing Name	7238 AC
New Model	7238AC
Old Model	46238 bearing
product Model	7238AC
Category	Angular Contact Ball Bearings
Brand	NTN Bearing
Inner Diameter d ( mm )	190
Outer Diameter D ( mm )	340
Thickness B ( mm )	55

NTN 7238 AC Bearing Bearing Size and Drawing：

NTN 7238 AC Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
NACHI 7238B Bearing	190	340	55	NACHI	Angular Contact Ball Bearings
KOYO N238 Bearing	190	340	55	KOYO	Cylindrical Roller Bearings
NACHI NF 238 Bearing	190	340	55	NACHI	Cylindrical Roller Bearings
KOYO NJ238E+HJ238E Bearing	190	340	55	KOYO	Cylindrical Roller Bearings
BARDEN 7238AC Bearing	190	340	55	BARDEN	Angular Contact Ball Bearings
TBS 6238 Bearing	190	340	55	TBS	Deep Groove Ball Bearings
RIV NUP 238 Bearing	190	340	55	RIV	Cylindrical Roller Bearings
FAG N238E Bearing	190	340	55	FAG	Cylindrical Roller Bearings
KOYO NJ 238 R Bearing	190	340	55	KOYO	Cylindrical Roller Bearings
NTN NU238 Bearing	190	340	55	NTN	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：NACHI 7214 AC
Next：NACHI 7215 AC

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