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NTN 3920-TRB tapered roller bearing cup for inch series applications. Manufactured from case carburized steel, this cup is designed for use with a matching cone to form a complete tapered roller bearing assembly. Suitable for moderate-load industrial gearboxes and axle housings.
MODEL 3920-TRB
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$24.66 Each
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Brand Minimum Order Quantity: 3
Typically Ships in: 1 day
Returnable:No
D (in)
4.4375
I.D.
2.625 in
Material
Case carburized steel
O.D.
4.4375 in
r (in)
0.1300
Type
Bearing Cup
W
1.1875 in
Wo
0.9375 in
X
4.17 in
Z
3.90 in
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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