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HM803112

Image for Illustration purposes only. Actual product may vary

NTN HM803112 is a tapered roller bearing cup for inch series applications. Manufactured from case carburized steel for durability under heavy loads. Used in conjunction with a matching cone for complete bearing assemblies in industrial gearboxes and axle housings.

MODEL HM803112

BRAND

SKU

826284

WEIGHT

0.871 lb

UOM

each

$108.74 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

D (in)

3.6250

I.D.

1.75 in

Material

Case carburized steel

O.D.

3.625 in

r (in)

0.1300

Type

Bearing Cup

W

1.1875 in

Wo

0.9063 in

Technical Specifications

Type

Bearing Cup

Material

Case Carburized Steel

Weight

0.871 lb0.395 kg

Dimensional Specifications


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

D

3.6250 in92.075 mm

Wo

0.9063 in23.020 mm

W

1.1875 in30.163 mm

r

0.1300 in3.300 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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Return policy

Item must be unused.

Item must be in it's original package.