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NTN 30218 single row metric tapered roller bearing with 90 mm straight bore. 302 series design with stamped steel cage handles combined radial and axial loads. Suitable for gearboxes, vehicle wheel hubs, and industrial machinery.
MODEL 30218
$116.44 Each
Prices are subject to change
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Returnable:No
Height
6.299
I.D.
3.5433 in
Length
6.299
O.D.
6.2992 in
Width
1.2795
Technical Specifications
Type | Tapered Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Limiting Speed - Oil | 3000 RPM |
Limiting Speed - Grease | 2200 RPM |
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 |
Y0 (Axial Load Factor) | 0.79 |
Static Load Rating | 60000 lbf267000 N267.00 kN |
Dynamic Load Rating | 47000 lbf208000 N208.00 kN |
Enclosure | Open |
Weight | 5.864 lb2.660 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.5433 in90.000 mm |
D | 6.2992 in160.000 mm |
C | 1.0236 in26.000 mm |
B | 1.1811 in30.000 mm |
a (Effective Load Center) | -0.0197 in-0.500 mm |
T | 1.2795 in32.500 mm |
r | 0.0800 in2.000 mm |
R | 0.08 in2.0 mm |
da | 4.02 in102.0 mm |
db | 4.06 in103.0 mm |
Da | 5.91 in150.0 mm |
Da min | 5.51 in140.0 mm |
Db | 5.91 in150.0 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.
| Brand | Remco Products |
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| Brand | MCR Safety |
| Model | 4850L |
