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864

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NTN 864 is an inch series single row tapered roller bearing with a straight bore. Designed for radial and axial load combinations, it is suitable for gearboxes, wheel hubs, and industrial machinery.

MODEL 864

BRAND

SKU

284344

WEIGHT

10.060 lb

UOM

each

UPC

4547359589986

$324.82 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

Height

7.5

I.D.

3.75 in

Length

7.5

O.D.

7.5 in

Width

2.265

Technical Specifications

Type

Cone

Bore Type

Round

Material

Case Carburized Steel

Static Load Rating

144000 lbf640000 N640.00 kN

Dynamic Load Rating

94500 lbf420000 N420.00 kN

Weight

10.481 lb4.754 kg

Operating Temperature Range

-40 to 250 F-40 to 120 C

Y2 (Axial Load Factor)

1.79

e (Axial Load Factor)

0.33

Dimensional Specifications


Cone for Tapered Roller Bearing - Inch Series and J Series - Dimensions

B

3.7500 in95.250 mm

Wi

2.2650 in57.531 mm

R

0.3100 in7.900 mm

U

4.84 in123.0 mm

V

4.25 in108.0 mm

a (Effective Load Center)

-0.6000 in-15.200 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.

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Item must be unused.

Item must be in it's original package.