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The NTN 23056EMW33 is a 230 series spherical roller bearing with a 280 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 23056EMW33
$5,732.99 Each
Prices are subject to change
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Returnable:No
B (in)
4.1732
Bore type
Round
Bore Type
Round
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
D (in)
16.5354
d (in)
11.0236
d0
0.3150 in
D1
15.1969 in
d1
12.2047 in
Da max
15.9449 in
da min
11.6142 in
Dynamic load rating
490000 lbf
Dynamic Load Rating
490000 lbf
e
0.22
Enclosure
Open
I.D.
280 mm
Limiting speed - grease
900 RPM
Limiting Speed - Grease
900 RPM
Limiting speed - oil
1200 RPM
Limiting Speed - Oil
1200 RPM
Material
Through Hardened Steel
O.D.
420 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
ras max
0.1575 in
Ring modification
Plain
Ring Modification
Plain
Series
230
Static load rating
710000 lbf
Static Load Rating
710000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.7087 in
Y0
3.00
Y1
3.07
Y2
4.57
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 1200 RPM |
Limiting Speed - Grease | 900 RPM |
e | 0.22 |
Y1 | 3.07 |
Y2 | 4.57 |
Y0 | 3.00 |
Series | 230 |
Radial Internal Clearance | CN |
Ring Modification | Plain |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 710000 lbf3150000 N3150.00 kN |
Dynamic Load Rating | 490000 lbf2170000 N2170.00 kN |
Enclosure | Open |
Weight | 112.877 lb51.200 kg |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 11.0236 in280.000 mm |
D | 16.5354 in420.000 mm |
B | 4.1732 in106.000 mm |
d1 | 12.2047 in310.000 mm |
D1 | 15.1969 in386.000 mm |
r | 0.1575 in4.000 mm |
W0 | 0.7087 in18.000 mm |
d0 | 0.3150 in8.000 mm |
da min | 11.6142 in295.000 mm |
Da max | 15.9449 in405.000 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.