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NTN SET423 is a tapered roller bearing set in the inch series. It features a straight bore, open design, and case carburized steel construction for durability. This set is suitable for applications requiring high radial and axial load capacity in a compact assembly.
MODEL SET423
$285.30 Each
Prices are subject to change
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Returnable: See conditions
a (Effective Load Center)
-0.5900 in
B (in)
3.0000
Bore type
Round
Bore Type
Round
Cone Number
6461A
Configuration
One
Cup Number
6420
D (in)
5.8750
Dynamic load rating
71000 lbf
Dynamic Load Rating
71000 lbf
e (Axial Load Factor)
0.36
Enclosure
Open
Lubrication
w/o Oil Hole
Material
Case Carburized Steel
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision rating
Class 2
Precision Rating
Class 2
R (in)
0.38
r (in)
0.1300
Static load rating
105000 lbf
Static Load Rating
105000 lbf
Style
Cone & Cup
Type
Tapered Roller Bearing
U
4.25 in
V
3.50 in
W
2.1250 in
Wi
2.1350 in
Width
2.135
Wo
1.7500 in
X
5.51 in
Y2 (Axial Load Factor)
1.66
Z
5.08 in
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Case Carburized Steel |
Style | Cone & Cup |
Precision Rating | Class 2 |
Cone Number | 6461A |
Cup Number | 6420 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.36 |
Y2 (Axial Load Factor) | 1.66 |
Static Load Rating | 105000 lbf465000 N465.00 kN |
Dynamic Load Rating | 71000 lbf315000 N315.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
B | 3.0000 in76.200 mm |
D | 5.8750 in149.225 mm |
Wo | 1.7500 in44.450 mm |
Wi | 2.1350 in54.229 mm |
W | 2.1250 in53.975 mm |
r | 0.1300 in3.300 mm |
R | 0.38 in9.7 mm |
a (Effective Load Center) | -0.5900 in-15.000 mm |
U | 4.25 in108.0 mm |
V | 3.50 in89.0 mm |
X | 5.51 in140.0 mm |
Z | 5.08 in129.0 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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