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NTN 3920E tapered roller bearing cup for inch series and J series assemblies. Manufactured from case carburized steel, this cup is designed for use with corresponding cones in heavy-duty industrial applications such as gearboxes and axle housings.
MODEL 3920E
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$26.27 Each
Prices are subject to change
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Brand Minimum Order Quantity: 3
Typically Ships in: 1 day
Returnable:No
D (in)
4.4375
Material
Case carburized steel
r (in)
0.1300
Type
Bearing Cup
W
1.1875 in
Wo
0.9375 in
Technical Specifications
Type | Bearing Cup |
|---|---|
Material | Case Carburized Steel |
Dimensional Specifications
| |
D | 4.4375 in112.713 mm |
|---|---|
Wo | 0.9375 in23.813 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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