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7018B

Image for Illustration purposes only. Actual product may vary

NTN 7018B single-row angular contact ball bearing with a 90 mm straight bore. Open enclosure with a brass cage. Constructed from high carbon chrome steel for durability. Designed for combined radial and axial loads in machine tool spindles, pumps, and compressors.

MODEL 7018B

BRAND

SKU

830894

WEIGHT

2.928 lb

UOM

each

UPC

4547359433913

$384.95 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

B (in)

0.9449

Ball Material

Steel

Ball material

Steel

Bore Type

Round

Bore type

Round

Cage Material

Brass

Cage material

Brass

Cage Type

High Strength, 2 piece, Machined

Cage type

High strength, 2 piece, machined

Configuration

One

Contact angle

40 º

D (in)

5.5118

d (in)

3.5433

Double Row Width

1.8898 in

Enclosure

Open

I.D.

90 mm

Material

High carbon chrome steel

O.D.

140 mm

Operating Temperature Range

-40 to 250 °F

Operating temperature range

-40 to 250 ºF

Precision

ISO class 0

Quadruple Row Width

3.7795 in

r (in)

0.0591

Triple Row Width

2.8346 in

Type

Angular Contact Ball Bearing

Technical Specifications

Type

Angular Contact Ball Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Type

High Strength, 2 piece, Machined

Cage Material

Brass

Ball Material

Steel

Precision

ISO Class 0

Configuration

One

Enclosure

Open

Weight

2.928 lb1.328 kg

Operating Temperature Range

-40 to 250 F-40 to 120 C

Dimensional Specifications


Single Angular Contact Ball Bearings - Open Type - Dimensions

d

3.5433 in90.000 mm

D

5.5118 in140.000 mm

B

0.9449 in24.000 mm

r

0.0591 in1.500 mm

Contact Angle

40

Double Row Width

1.8898 in48.000 mm

Triple Row Width

2.8346 in72.000 mm

Quadruple Row Width

3.7795 in96.000 mm

How do I choose the right type of bearing for my application?

Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.

What is the difference between deep groove and angular contact ball bearings?

Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.

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