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NTN EC12245S04 is a metric series tapered roller bearing with a straight bore and open enclosure. Constructed from high carbon chrome steel, it is designed for applications requiring high radial and axial load capacity in a single row configuration.
MODEL EC12245S04
$107.61 Each
Prices are subject to change
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Returnable:No
a (Effective Load Center)
-0.1181 in
B (in)
0.7185
Bore Type
Round
Bore type
Round
C (in)
0.6693
Configuration
One
D (in)
3.3459
d (in)
1.7165
Dynamic Load Rating
13000 lbf
Dynamic load rating
13000 lbf
e (Axial Load Factor)
0.38
Enclosure
Open
Lubrication
w/o Oil Hole
Material
High carbon chrome steel
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision Rating
Class 0
Precision rating
Class 0
R (in)
0.06
r (in)
0.0100
Static Load Rating
13900 lbf
Static load rating
13900 lbf
Style
Cone & cup
T (in)
0.7185
Type
Tapered Roller Bearing
Y2 (Axial Load Factor)
1.6
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Style | Cone & Cup |
Precision Rating | Class 0 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.38 |
Y2 (Axial Load Factor) | 1.6 |
Static Load Rating | 13900 lbf62000 N62.00 kN |
Dynamic Load Rating | 13000 lbf58000 N58.00 kN |
Enclosure | Open |
Weight | 1.213 lb0.550 kg |
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.