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NTN 24144EMK30W33 is a 241 series spherical roller bearing with a 220 mm bore and a 1:30 tapered bore. 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 24144EMK30W33
$8,270.04 Each
Prices are subject to change
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Returnable:No
B (in)
5.9055
Bore type
Tapered
Bore Type
Tapered
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
D (in)
14.5669
d (in)
8.6614
d0
0.3543 in
Da max
13.8976 in
da min
9.3307 in
Dynamic load rating
570000 lbf
Dynamic Load Rating
570000 lbf
e
0.38
Enclosure
Open
I.D.
220 mm
Limiting speed - grease
1000 RPM
Limiting Speed - Grease
1000 RPM
Limiting speed - oil
1300 RPM
Limiting Speed - Oil
1300 RPM
Material
Through Hardened Steel
O.D.
370 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
815000 lbf
Static Load Rating
815000 lbf
Taper
1:30
Type
Spherical Roller Bearing
W0
0.7480 in
Y0
1.74
Y1
1.78
Y2
2.65
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Tapered |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 1300 RPM |
Limiting Speed - Grease | 1000 RPM |
e | 0.38 |
Y1 | 1.78 |
Y2 | 2.65 |
Y0 | 1.74 |
Series | 241 |
Radial Internal Clearance | CN |
Radial Internal Clearance Specification | Normal |
Ring Modification | Relube |
Static Load Rating | 815000 lbf3620000 N3620.00 kN |
Dynamic Load Rating | 570000 lbf2540000 N2540.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 8.6614 in220.000 mm |
D | 14.5669 in370.000 mm |
B | 5.9055 in150.000 mm |
r | 0.1575 in4.000 mm |
W0 | 0.7480 in19.000 mm |
d0 | 0.3543 in9.000 mm |
da min | 9.3307 in237.000 mm |
Da max | 13.8976 in353.000 mm |
ras max | 0.1575 in4.000 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.