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6313

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NTN 6313 is a 63 series single-row deep groove ball bearing with a 65 mm straight bore. This open design has no seals or shields, allowing for high-speed operation and easy relubrication. Suitable for electric motors, pumps, fans, and general industrial machinery.

MODEL 6313

BRAND

SKU

283967

WEIGHT

4.572 lb

UOM

each

UPC

4547359005738

$266.86 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

Clearance

CN

Enclosure

Open

Height

5.512

I.D.

65 mm

Length

5.512

Material

Steel

O.D.

140 mm

Width

1.2992

Technical Specifications

Type

Deep Groove Ball Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Type

Pressed

Cage Material

Steel

Ball Material

Steel

Limiting Speed - Oil

5800 RPM

Limiting Speed - Grease

4900 RPM

Seal Type

None

Seal Material

None

Precision

Class 0

Configuration

One

Factor

13.2

Radial Internal Clearance

CN

Static Load Rating

13500 lbf60000 N60.00 kN

Dynamic Load Rating

20800 lbf92500 N92.50 kN

Enclosure

Open

Weight

4.586 lb2.080 kg

Operating Temperature Range

-40 to 250 F-40 to 120 C

Dimensional Specifications


Single Row Radial Ball Bearing - Open Type - Dimensions

d

2.5591 in65.000 mm

D

5.5118 in140.000 mm

B

1.2992 in33.000 mm

r

0.0827 in2.100 mm

r1

0.0197 in0.500 mm

da min

2.9921 in76.000 mm

da max

3.3858 in86.000 mm

Da max

5.0787 in129.000 mm

ras max

0.0787 in2.000 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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