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NTN HM89449 is an inch-series tapered roller bearing cone with a straight bore. This single-row cone is designed for use with a matching cup in applications such as vehicle wheel hubs, gearbox shafts, and axle housings. The HM prefix indicates a medium-duty inch series.
MODEL HM89449
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$36.84 Each
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Brand Minimum Order Quantity: 2
Typically Ships in: 1 day
Returnable:No
Height
3
I.D.
1.4375 in
Length
3
O.D.
3 in
Width
1.125
Technical Specifications
Type | Cone |
|---|---|
Bore Type | Round |
Material | Case Carburized Steel |
Static Load Rating | 23600 lbf105000 N105.00 kN |
Dynamic Load Rating | 17500 lbf78000 N78.00 kN |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Y2 (Axial Load Factor) | 1.1 |
e (Axial Load Factor) | 0.55 |
Dimensional Specifications
| |
B | 1.4375 in36.513 mm |
|---|---|
Wi | 1.1250 in28.575 mm |
R | 0.1400 in3.600 mm |
U | 2.13 in54.0 mm |
V | 1.75 in44.5 mm |
a (Effective Load Center) | -0.2300 in-5.800 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.