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NTN 23120EMW33 is a 231 series spherical roller bearing with a 100 mm straight bore. It features a machined brass cage and an annular lube groove (W33) for effective lubrication. Designed for heavy-duty industrial applications such as gearboxes, conveyors, and vibrating screens.
MODEL 23120EMW33
$690.99 Each
Prices are subject to change
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Returnable: See conditions
B (in)
2.0472
Bore type
Round
Bore Type
Round
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
D (in)
6.4961
d (in)
3.9370
d0
0.1575 in
d1
4.4882 in
D1
5.7874 in
Da max
6.0630 in
da min
4.3701 in
Dynamic load rating
108000 lbf
Dynamic Load Rating
108000 lbf
e
0.28
Enclosure
Open
I.D.
100 mm
Limiting speed - grease
2400 RPM
Limiting Speed - Grease
2400 RPM
Limiting speed - oil
3000 RPM
Limiting Speed - Oil
3000 RPM
Material
Through Hardened Steel
O.D.
165 mm
Operating temperature range
-40 to 400 ºF
Operating Temperature Range
-40 to 400 °F
r (in)
0.0787
Radial internal clearance
CN
Radial Internal Clearance
CN
ras max
0.0787 in
Ring modification
Relube
Ring Modification
Relube
Series
231
Static load rating
133000 lbf
Static Load Rating
133000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.3150 in
Width
52 mm
Y0
2.34
Y1
2.39
Y2
3.56
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 3000 RPM |
Limiting Speed - Grease | 2400 RPM |
e | 0.28 |
Y1 | 2.39 |
Y2 | 3.56 |
Y0 | 2.34 |
Series | 231 |
Radial Internal Clearance | CN |
Ring Modification | Relube |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 133000 lbf590000 N590.00 kN |
Dynamic Load Rating | 108000 lbf480000 N480.00 kN |
Enclosure | Open |
Weight | 9.811 lb4.450 kg |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 3.9370 in100.000 mm |
D | 6.4961 in165.000 mm |
B | 2.0472 in52.000 mm |
d1 | 4.4882 in114.000 mm |
D1 | 5.7874 in147.000 mm |
r | 0.0787 in2.000 mm |
W0 | 0.3150 in8.000 mm |
d0 | 0.1575 in4.000 mm |
da min | 4.3701 in111.000 mm |
Da max | 6.0630 in154.000 mm |
ras max | 0.0787 in2.000 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.
