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The NTN 33218 is a single row metric tapered roller bearing with a 90 mm straight bore. This open bearing features through hardened steel construction for durability in moderate-speed, moderate-load applications such as gearboxes and industrial machinery.
MODEL 33218
$226.03 Each
Prices are subject to change
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Returnable:No
a (Effective Load Center)
-0.5512 in
B (in)
2.1654
Bore Type
Round
Bore type
Round
C (in)
1.6535
Configuration
One
D (in)
6.2992
d (in)
3.5433
Dynamic Load Rating
65500 lbf
Dynamic load rating
65500 lbf
e (Axial Load Factor)
0.42
Enclosure
Open
I.D.
3.5433 in
Lubrication
w/o Oil Hole
Material
Through hardened steel
O.D.
6.2992 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision Rating
Class 0
Precision rating
Class 0
R (in)
0.12
r (in)
0.1200
Static Load Rating
68500 lbf
Static load rating
68500 lbf
Style
Cone & cup
T (in)
2.1654
Type
Tapered Roller Bearing
Y2 (Axial Load Factor)
1.43
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Style | Cone & Cup |
Precision Rating | Class 0 |
Configuration | One |
Lubrication | w/o Oil Hole |
e (Axial Load Factor) | 0.42 |
Y2 (Axial Load Factor) | 1.43 |
Static Load Rating | 68500 lbf305000 N305.00 kN |
Dynamic Load Rating | 65500 lbf291000 N291.00 kN |
Enclosure | Open |
Weight | 10.185 lb4.620 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.
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