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7307B

Image for Illustration purposes only. Actual product may vary

NTN 7307B is a single-row angular contact ball bearing with a 35 mm straight bore and a 40° contact angle. The open design allows for custom lubrication. This bearing is suitable for applications requiring combined radial and axial loads, such as pumps, compressors, and machine tool spindles.

MODEL 7307B

BRAND

SKU

277626

WEIGHT

1.027 lb

UOM

each

$37.67 Each

Prices are subject to change

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

Enclosure

Open

Height

3.15

I.D.

35 mm

Length

3.15

O.D.

80 mm

Width

0.8268

Technical Specifications

Type

Angular Contact Ball Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Type

Pressed

Cage Material

Steel

Ball Material

Steel

Limiting Speed - Oil

11000 RPM

Limiting Speed - Grease

8400 RPM

Precision

ISO Class 0

Configuration

One

Static Load Rating

5450 lbf24200 N24.20 kN

Dynamic Load Rating

8200 lbf36500 N36.50 kN

Enclosure

Open

Weight

1.027 lb0.466 kg

Operating Temperature Range

-40 to 250 F-40 to 120 C

Dimensional Specifications


Single Angular Contact Ball Bearings - Open Type - Dimensions

d

1.3780 in35.000 mm

D

3.1496 in80.000 mm

B

0.8268 in21.000 mm

r

0.0591 in1.500 mm

r1

0.0394 in1.000 mm

Contact Angle

40

a (Load Center)

1.3583 in34.500 mm

da min

1.7126 in43.500 mm

db min

1.5945 in40.500 mm

Da max

2.8150 in71.500 mm

Db max

2.9331 in74.500 mm

ras max

0.0591 in1.500 mm

r1as max

0.0394 in1.000 mm

Double Row Width

1.6535 in42.000 mm

Triple Row Width

2.4803 in63.000 mm

Quadruple Row Width

3.3071 in84.000 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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7307B

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Model

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Return policy

Item must be unused.

Item must be in it's original package.