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NTN A4049 is a single-row tapered roller bearing cone for inch-series applications. It features a straight bore and is manufactured from case carburized steel for durability under heavy radial and axial loads. This cone is designed for use with a matching cup in gearboxes, axle housings, and industrial machinery.
MODEL A4049
$166.05 Each
Prices are subject to change
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Returnable:No
a (Effective Load Center)
-0.3300 in
B (in)
0.4992
Bore Type
Round
Bore type
Round
Height
1.378
I.D.
0.4992 in
Length
1.378
Material
Case carburized steel
O.D.
1.3775 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
R (in)
0.0300
Type
Cone
Wi
0.4326 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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