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NTN 22310EAKW33 is a 223 series spherical roller bearing with a 50 mm straight bore. It features an enhanced design brass cage and an annular lube groove with three lube holes (W33). This bearing accommodates heavy radial and moderate axial loads in industrial gearboxes, conveyors, and vibrating equipment.
MODEL 22310EAKW33
$298.07 Each
Prices are subject to change
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Returnable: See conditions
B (in)
1.5748
Bore type
Tapered
Bore Type
Tapered
Cage material
Steel
Cage Material
Steel
Cage type
Pressed
Cage Type
Pressed
D (in)
4.3307
d (in)
1.9685
d0
0.1378 in
D1
3.7402 in
d1
2.4803 in
Da max
3.8976 in
da min
2.4016 in
Dynamic load rating
56000 lbf
Dynamic Load Rating
56000 lbf
e
0.36
Enclosure
Open
I.D.
50 mm
Limiting speed - grease
4300 RPM
Limiting Speed - Grease
4300 RPM
Limiting speed - oil
5300 RPM
Limiting Speed - Oil
5300 RPM
Material
Through Hardened Steel
O.D.
110 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
223
Static load rating
52000 lbf
Static Load Rating
52000 lbf
Taper
1:12
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.2756 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 | 5300 RPM |
Limiting Speed - Grease | 4300 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 |
Taper | 1:12 |
Static Load Rating | 52000 lbf232000 N232.00 kN |
Dynamic Load Rating | 56000 lbf250000 N250.00 kN |
Enclosure | Open |
Weight | 3.946 lb1.790 kg |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 1.9685 in50.000 mm |
D | 4.3307 in110.000 mm |
B | 1.5748 in40.000 mm |
d1 | 2.4803 in63.000 mm |
D1 | 3.7402 in95.000 mm |
r | 0.0787 in2.000 mm |
W0 | 0.2756 in7.000 mm |
d0 | 0.1378 in3.500 mm |
da min | 2.4016 in61.000 mm |
Da max | 3.8976 in99.000 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.
