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NTN 23136EAW33 is a 231 series spherical roller bearing with a 180 mm straight bore. It features an enhanced brass cage and an annular lube groove (W33) for reliable lubrication. Designed for heavy-duty industrial applications such as gearboxes, pumps, and mining equipment.
MODEL 23136EAW33
$2,817.53 Each
Prices are subject to change
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Returnable:No
B (in)
3.7795
Bore type
Round
Bore Type
Round
Cage material
Steel
Cage Material
Steel
Cage type
Pressed
Cage Type
Pressed
D (in)
11.8110
d (in)
7.0866
d0
0.2756 in
d1
8.0709 in
D1
10.5118 in
Da max
11.2598 in
da min
7.6378 in
Dynamic load rating
335000 lbf
Dynamic Load Rating
335000 lbf
e
0.29
Enclosure
Open
I.D.
180 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.
300 mm
Operating temperature range
-40 to 400 ºF
Operating Temperature Range
-40 to 400 °F
r (in)
0.1181
Radial internal clearance
CN
Radial Internal Clearance
CN
ras max
0.1181 in
Ring modification
Relube
Ring Modification
Relube
Series
231
Static load rating
440000 lbf
Static Load Rating
440000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.5906 in
Y0
2.26
Y1
2.32
Y2
3.45
Technical Specifications
| Type | Spherical Roller Bearing |
|---|---|
| Bore Type | Round |
| Material | Through Hardened Steel |
| Cage Type | Pressed |
| Cage Material | Steel |
| Limiting Speed - Oil | 1700 RPM |
| Limiting Speed - Grease | 1300 RPM |
| e | 0.29 |
| Y1 | 2.32 |
| Y2 | 3.45 |
| Y0 | 2.26 |
| Series | 231 |
| Radial Internal Clearance | CN |
| Ring Modification | Relube |
| Tolerance | JIS-0 RBEC-1 |
| Static Load Rating | 440000 lbf1960000 N1960.00 kN |
| Dynamic Load Rating | 335000 lbf1490000 N1490.00 kN |
| Enclosure | Open |
| Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
| d | 7.0866 in180.000 mm |
|---|---|
| D | 11.8110 in300.000 mm |
| B | 3.7795 in96.000 mm |
| d1 | 8.0709 in205.000 mm |
| D1 | 10.5118 in267.000 mm |
| r | 0.1181 in3.000 mm |
| W0 | 0.5906 in15.000 mm |
| d0 | 0.2756 in7.000 mm |
| da min | 7.6378 in194.000 mm |
| Da max | 11.2598 in286.000 mm |
| ras max | 0.1181 in3.000 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.
| Brand | Guardair |
| Model | U80LJ072AA2 |
