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The NTN JM515649/JM515610 is a single row inch series tapered roller bearing set consisting of cone JM515649 and cup JM515610. It features a straight bore, open enclosure, and is constructed from case carburized steel for durability. This bearing is designed for applications requiring high radial and axial load capacity, such as gearboxes and industrial machinery.
MODEL JM515649/JM515610
$99.32 Each
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a (Effective Load Center)
-0.2000 in
B (in)
3.1496
Bore type
Round
Bore Type
Round
Cone Number
JM515649
Configuration
One
Cup Number
JM515610
D (in)
5.1181
Dynamic load rating
41500 lbf
Dynamic Load Rating
41500 lbf
e (Axial Load Factor)
0.39
Enclosure
Open
I.D.
3.1496 in
Lubrication
w/o Oil Hole
Material
Case Carburized Steel
O.D.
5.1181 in
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision rating
Class N
Precision Rating
Class N
R (in)
0.12
r (in)
0.1000
Static load rating
64500 lbf
Static Load Rating
64500 lbf
Style
Cone & Cup
Type
Tapered Roller Bearing
U
3.70 in
V
3.46 in
W
1.3780 in
Wi
1.3386 in
Width
1.122
Wo
1.1220 in
X
4.92 in
Y2 (Axial Load Factor)
1.54
Z
4.61 in
Technical Specifications
| Type | Tapered Roller Bearing |
|---|---|
| Bore Type | Round |
| Material | Case Carburized Steel |
| Style | Cone & Cup |
| Precision Rating | Class N |
| Cone Number | JM515649 |
| Cup Number | JM515610 |
| Configuration | One |
| Lubrication | w/o Oil Hole |
| e (Axial Load Factor) | 0.39 |
| Y2 (Axial Load Factor) | 1.54 |
| Static Load Rating | 64500 lbf286000 N286.00 kN |
| Dynamic Load Rating | 41500 lbf184000 N184.00 kN |
| Enclosure | Open |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| B | 3.1496 in80.000 mm |
|---|---|
| D | 5.1181 in130.000 mm |
| Wo | 1.1220 in28.500 mm |
| Wi | 1.3386 in34.000 mm |
| W | 1.3780 in35.000 mm |
| r | 0.1000 in2.500 mm |
| R | 0.12 in3.0 mm |
| a (Effective Load Center) | -0.2000 in-5.100 mm |
| U | 3.70 in94.0 mm |
| V | 3.46 in88.0 mm |
| X | 4.92 in125.0 mm |
| Z | 4.61 in117.0 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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