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NTN 342A is a single-row tapered roller bearing cone from the inch series. 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 industrial gearboxes, axle housings, and conveyor systems.
MODEL 342A
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$52.14 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable:No
a (Effective Load Center)
-0.2600 in
B (in)
1.6250
Bore Type
Round
Bore type
Round
Dynamic Load Rating
15300 lbf
Dynamic load rating
15300 lbf
e (Axial Load Factor)
0.27
Height
3.375
I.D.
1.625 in
Length
3.375
Material
Case carburized steel
O.D.
3.1496 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
R (in)
0.1400
Static Load Rating
16900 lbf
Static load rating
16900 lbf
Type
Cone
Wi
1.1802 in
Y2 (Axial Load Factor)
2.2
Technical Specifications
Type | Cone |
|---|---|
Bore Type | Round |
Material | Case Carburized Steel |
Static Load Rating | 16900 lbf75000 N75.00 kN |
Dynamic Load Rating | 15300 lbf68000 N68.00 kN |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Y2 (Axial Load Factor) | 2.2 |
e (Axial Load Factor) | 0.27 |
Dimensional Specifications
| |
B | 1.6250 in41.275 mm |
|---|---|
Wi | 1.1802 in29.977 mm |
R | 0.1400 in3.600 mm |
a (Effective Load Center) | -0.2600 in-6.600 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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