DKF 7238 B Bearing_DKF 7238 B Size and Details

DKF 7238 B bearing

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DKF 7238 B Bearing Details：

Bearing Name	7238 B
New Model	7238B
Old Model	66238 bearing
product Model	7238B
Category	Angular Contact Ball Bearings
Brand	DKF Bearing
Inner Diameter d ( mm )	190
Outer Diameter D ( mm )	340
Thickness B ( mm )	55

DKF 7238 B Bearing Bearing Size and Drawing：

DKF 7238 B Bearing With size alternative model

Model	Inner Diameter d(mm)	Outer Diameter D(mm)	thickness B(mm)	Brand	Type
STEYR NJ238 Bearing	190	340	55	STEYR	Cylindrical Roller Bearings
KOYO NU238 Bearing	190	340	55	KOYO	Cylindrical Roller Bearings
NSK NUP238E Bearing	190	340	55	NSK	Cylindrical Roller Bearings
MAC NU 238 Bearing	190	340	55	MAC	Cylindrical Roller Bearings
ZKL N 238 Bearing	190	340	55	ZKL	Cylindrical Roller Bearings
NACHI 30238 Bearing	190	340	55	NACHI	Tapered Roller Bearings
DKF 7238 B Bearing	190	340	55	DKF	Angular Contact Ball Bearings
NTN NU 238 Bearing	190	340	55	NTN	Cylindrical Roller Bearings
KOYO NUP238R Bearing	190	340	55	KOYO	Cylindrical Roller Bearings
RIV NU 238 Bearing	190	340	55	RIV	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.

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