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NTN 24038EMW33C3 is a 240 series spherical roller bearing with a 190 mm straight bore. It features a machined brass cage, an annular lube groove with three lube holes (W33), and C3 clearance. This open bearing is made of through hardened steel and is designed for heavy-duty industrial applications such as gearboxes, pumps, and mining equipment.
MODEL 24038EMW33C3
$3,125.43 Each
Prices are subject to change
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Returnable: See conditions
B (in)
3.9370
Bore type
Round
Bore Type
Round
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
D (in)
11.4173
d (in)
7.4803
d0
0.2362 in
D1
10.1575 in
d1
8.2283 in
Da max
10.9843 in
da min
7.9134 in
Dynamic load rating
305000 lbf
Dynamic Load Rating
305000 lbf
e
0.30
Enclosure
Open
I.D.
190 mm
Limiting speed - grease
1300 RPM
Limiting Speed - Grease
1300 RPM
Limiting speed - oil
1700 RPM
Limiting Speed - Oil
1700 RPM
Material
Through Hardened Steel
O.D.
290 mm
Operating temperature range
-40 to 400 ºF
Operating Temperature Range
-40 to 400 °F
r (in)
0.0827
Radial internal clearance
C3
Radial Internal Clearance
C3
ras max
0.0827 in
Ring modification
Plain
Ring Modification
Plain
Series
240
Static load rating
450000 lbf
Static Load Rating
450000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.5118 in
Y0
2.18
Y1
2.23
Y2
3.32
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 1700 RPM |
Limiting Speed - Grease | 1300 RPM |
e | 0.30 |
Y1 | 2.23 |
Y2 | 3.32 |
Y0 | 2.18 |
Series | 240 |
Radial Internal Clearance | C3 |
Ring Modification | Plain |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 450000 lbf2000000 N2000.00 kN |
Dynamic Load Rating | 305000 lbf1360000 N1360.00 kN |
Enclosure | Open |
Weight | 49.648 lb22.520 kg |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 7.4803 in190.000 mm |
D | 11.4173 in290.000 mm |
B | 3.9370 in100.000 mm |
d1 | 8.2283 in209.000 mm |
D1 | 10.1575 in258.000 mm |
r | 0.0827 in2.100 mm |
W0 | 0.5118 in13.000 mm |
d0 | 0.2362 in6.000 mm |
da min | 7.9134 in201.000 mm |
Da max | 10.9843 in279.000 mm |
ras max | 0.0827 in2.100 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.
