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NTN MR1309EHL is a cylindrical roller bearing with a separable inner ring featuring one rib and an outer ring with two ribs. It is open (unsealed) with a composite steel cage and hardened alloy steel construction. Designed for applications requiring axial location in one direction.
MODEL MR1309EHL
$142.53 Each
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Returnable:No
a (in)
0.3118
A (in)
2.3370
B (in)
1.7717
b (in)
0.1098
Bore Type
Round
Bore type
Round
Cage Material
Composite Steel
Cage material
Composite steel
Configuration
One
D (in)
3.9370
Dynamic Load Rating
24100 lbf
Dynamic load rating
24100 lbf
Enclosure
Open
F (in)
2.5248
H (in)
3.2079
Material
Hardened alloy steel
Oil Hole
w/o Oil Hole
Oil hole
w/o Oil Hole
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
r (in)
0.0598
R (in)
0.0799
Radial Internal Clearance
CN
Radial internal clearance
CN
Static Load Rating
27200 lbf
Static load rating
27200 lbf
Tolerance
ISO class 0 (RBEC 1)
Type
Cylindrical Roller Bearing
U (Plain Rings)
2.2008 in
V (Rib Rings)
2.3307 in
W
0.9843 in
X (Plain Rings)
3.5591 in
Z (Rib Rings)
3.3898 in
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Round |
Material | Hardened Alloy Steel |
Cage Material | Composite Steel |
Configuration | One |
Tolerance | ISO Class 0 (RBEC 1) |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | CN |
Static Load Rating | 27200 lbf121000 N121.00 kN |
Dynamic Load Rating | 24100 lbf107000 N107.00 kN |
Enclosure | Open |
Weight | 2.339 lb1.061 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
B | 1.7717 in45.000 mm |
D | 3.9370 in100.000 mm |
W | 0.9843 in25.000 mm |
A | 2.3370 in59.360 mm |
F | 2.5248 in64.130 mm |
H | 3.2079 in81.480 mm |
a | 0.3118 in7.920 mm |
b | 0.1098 in2.790 mm |
R | 0.0799 in2.030 mm |
U (Plain Rings) | 2.2008 in55.900 mm |
V (Rib Rings) | 2.3307 in59.200 mm |
X (Plain Rings) | 3.5591 in90.400 mm |
Z (Rib Rings) | 3.3898 in86.100 mm |
r | 0.0598 in1.520 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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