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NTN 24148EMK30W33 is a 241 series spherical roller bearing with a 240 mm tapered bore (1:30). It features a machined brass cage and an annular lube groove with three lube holes (W33). Designed for heavy-duty industrial applications such as gearboxes, mining equipment, and paper mills.
MODEL 24148EMK30W33
$10,051.50 Each
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B (in)
6.2992
Bore type
Tapered
Bore Type
Tapered
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
d (in)
9.4488
D (in)
15.7480
d0
0.3543 in
Da max
15.0787 in
da min
10.1181 in
Dynamic load rating
655000 lbf
Dynamic Load Rating
655000 lbf
e
0.37
Enclosure
Open
I.D.
240 mm
Limiting speed - grease
960 RPM
Limiting Speed - Grease
960 RPM
Limiting speed - oil
1200 RPM
Limiting Speed - Oil
1200 RPM
Material
Through Hardened Steel
O.D.
400 mm
Operating temperature range
-40 to 400 ºF
Operating Temperature Range
-40 to 400 °F
r (in)
0.1575
Radial internal clearance
CN
Radial Internal Clearance
CN
Radial internal clearance specification
Normal
Radial Internal Clearance Specification
Normal
ras max
0.1575 in
Ring modification
Relube
Ring Modification
Relube
Series
241
Static load rating
965000 lbf
Static Load Rating
965000 lbf
Taper
1:30
Type
Spherical Roller Bearing
W0
0.7480 in
Y0
1.78
Y1
1.82
Y2
2.70
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Tapered |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 1200 RPM |
Limiting Speed - Grease | 960 RPM |
e | 0.37 |
Y1 | 1.82 |
Y2 | 2.70 |
Y0 | 1.78 |
Series | 241 |
Radial Internal Clearance | CN |
Radial Internal Clearance Specification | Normal |
Ring Modification | Relube |
Static Load Rating | 965000 lbf4290000 N4290.00 kN |
Dynamic Load Rating | 655000 lbf2910000 N2910.00 kN |
Enclosure | Open |
Weight | 175.929 lb79.800 kg |
Operating Temperature Range | -40 to 400 F-40 to 200 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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