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NTN 22311EAKW33 is a 223 series spherical roller bearing with a 55 mm straight bore. Features an enhanced design brass cage and W33 annular lube groove with three lubrication holes. Suitable for heavy-duty industrial applications including gearboxes, conveyors, and vibrating screens.
MODEL 22311EAKW33
$300.08 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
B (in)
1.6929
Bore Type
Tapered
Bore type
Tapered
Cage Material
Steel
Cage material
Steel
Cage Type
Pressed
Cage type
Pressed
D (in)
4.7244
d (in)
2.1654
d0
0.1378 in
Da max
4.2913 in
da min
2.5984 in
Dynamic Load Rating
66500 lbf
Dynamic load rating
66500 lbf
e
0.36
Enclosure
Open
I.D.
55 mm
Limiting Speed - Grease
3900 RPM
Limiting speed - grease
3900 RPM
Limiting Speed - Oil
4800 RPM
Limiting speed - oil
4800 RPM
Material
Through hardened steel
O.D.
120 mm
Operating Temperature Range
-40 to 400 °F
Operating temperature range
-40 to 400 ºF
r (in)
0.0787
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0787 in
Ring Modification
Relube
Ring modification
Relube
Series
223
Static Load Rating
61500 lbf
Static load rating
61500 lbf
Taper
1 to 12
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.3150 in
Y0
1.83
Y1
1.87
Y2
2.79
Technical Specifications
Type | Spherical Roller Bearing |
|---|---|
Bore Type | Tapered |
Material | Through Hardened Steel |
Cage Type | Pressed |
Cage Material | Steel |
Limiting Speed - Oil | 4800 RPM |
Limiting Speed - Grease | 3900 RPM |
e | 0.36 |
Y1 | 1.87 |
Y2 | 2.79 |
Y0 | 1.83 |
Series | 223 |
Radial Internal Clearance | CN |
Ring Modification | Relube |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 61500 lbf274000 N274.00 kN |
Dynamic Load Rating | 66500 lbf296000 N296.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 2.1654 in55.000 mm |
|---|---|
D | 4.7244 in120.000 mm |
B | 1.6929 in43.000 mm |
r | 0.0787 in2.000 mm |
W0 | 0.3150 in8.000 mm |
d0 | 0.1378 in3.500 mm |
da min | 2.5984 in66.000 mm |
Da max | 4.2913 in109.000 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.
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