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NTN LM29749/LM29711 is an inch series tapered roller bearing set consisting of cone LM29749 and cup LM29711. It features a straight bore, open design, and is constructed from case carburized steel for durability. This bearing is suitable for applications requiring high radial and axial load capacity in a compact inch-series package.
MODEL LM29749/LM29711
$22.60 Each
Prices are subject to change
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Returnable:No
a (Effective Load Center)
-0.1700 in
B (in)
1.5000
Bore Type
Round
Bore type
Round
Cone Number
LM29749
Configuration
One
Cup Number
LM29711
D (in)
2.5625
Dynamic Load Rating
9800 lbf
Dynamic load rating
9800 lbf
e (Axial Load Factor)
0.33
Enclosure
Open
I.D.
1.5 in
Lubrication
w/o Oil Hole
Material
Case carburized steel
O.D.
2.5625 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision Rating
Class 2
Precision rating
Class 2
R (in)
0.09
r (in)
0.0500
Static Load Rating
12800 lbf
Static load rating
12800 lbf
Style
Cone & cup
Type
Tapered Roller Bearing
W
0.7800 in
Wi
0.7200 in
Width
0.78
Wo
0.6200 in
Y2 (Axial Load Factor)
1.80
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Case Carburized Steel |
Style | Cone & Cup |
Precision Rating | Class 2 |
Cone Number | LM29749 |
Cup Number | LM29711 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.33 |
Y2 (Axial Load Factor) | 1.80 |
Static Load Rating | 12800 lbf57000 N57.00 kN |
Dynamic Load Rating | 9800 lbf43500 N43.50 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
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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