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NTN LL225749/LL225710 is an inch series tapered roller bearing with a straight bore and open design. Constructed from case carburized steel, this single row bearing is designed for applications requiring high radial and axial load capacity in a compact envelope.
MODEL LL225749/LL225710
$522.38 Each
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Returnable:No
a (Effective Load Center)
0.2400 in
B (in)
5.0000
Bore Type
Round
Bore type
Round
Cone Number
LL225749
Configuration
One
Cup Number
LL225710
D (in)
6.5313
Dynamic Load Rating
17900 lbf
Dynamic load rating
17900 lbf
e (Axial Load Factor)
0.33
Enclosure
Open
I.D.
5 in
Lubrication
w/o Oil Hole
Material
Case carburized steel
O.D.
6.5313 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision Rating
Class 4
Precision rating
Class 4
R (in)
0.06
r (in)
0.0600
Static Load Rating
31000 lbf
Static load rating
31000 lbf
Style
Cone & cup
Type
Tapered Roller Bearing
U
5.31 in
V
5.24 in
W
0.7188 in
Wi
0.6875 in
Wo
0.5313 in
X
6.30 in
Y2 (Axial Load Factor)
1.80
Z
6.22 in
Technical Specifications
Type |
Tapered Roller Bearing |
Bore Type |
Round |
Material |
Case Carburized Steel |
Style |
Cone & Cup |
Precision Rating |
Class 4 |
Cone Number |
LL225749 |
Cup Number |
LL225710 |
Configuration |
One |
Lubrication |
w/o Oil Hole |
e (Axial Load Factor) |
0.33 |
Y2 (Axial Load Factor) |
1.80 |
Static Load Rating |
31000 lbf138000 N138.00 kN |
Dynamic Load Rating |
17900 lbf79500 N79.50 kN |
Enclosure |
Open |
Operating Temperature Range |
-40 to 250 F-40 to 120 C |
Dimensional Specifications
|
|
|
B |
5.0000 in127.000 mm |
D |
6.5313 in165.895 mm |
Wo |
0.5313 in13.495 mm |
Wi |
0.6875 in17.463 mm |
W |
0.7188 in18.257 mm |
r |
0.0600 in1.500 mm |
R |
0.06 in1.5 mm |
a (Effective Load Center) |
0.2400 in6.100 mm |
U |
5.31 in135.0 mm |
V |
5.24 in133.0 mm |
X |
6.30 in160.0 mm |
Z |
6.22 in158.0 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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