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NTN 22228EAKW33C4 is a 222 series spherical roller bearing with a 140 mm straight bore. It features an enhanced design brass cage, C4 clearance, and an annular lube groove with three lube holes (W33). This open bearing is suitable for heavy-duty industrial applications such as gearboxes, vibrating screens, and paper mills.
MODEL 22228EAKW33C4
$4,810.03 Each
Prices are subject to change
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Returnable: See conditions
B (in)
2.6772
Bore type
Tapered
Bore Type
Tapered
Cage material
Steel
Cage Material
Steel
Cage type
Pressed
Cage Type
Pressed
D (in)
9.8425
d (in)
5.5118
d0
0.2756 in
D1
8.8189 in
d1
6.4173 in
Da max
9.2913 in
da min
6.0630 in
Dynamic load rating
205000 lbf
Dynamic Load Rating
205000 lbf
e
0.25
Enclosure
Open
Limiting speed - grease
2000 RPM
Limiting Speed - Grease
2000 RPM
Limiting speed - oil
2500 RPM
Limiting Speed - Oil
2500 RPM
Material
Through Hardened Steel
Operating temperature range
-40 to 400 ºF
Operating Temperature Range
-40 to 400 °F
r (in)
0.1181
Radial internal clearance
C4
Radial Internal Clearance
C4
ras max
0.1181 in
Ring modification
Relube
Ring Modification
Relube
Series
222
Static load rating
227000 lbf
Static Load Rating
227000 lbf
Taper
1:12
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.5512 in
Y0
2.68
Y1
2.74
Y2
4.08
Technical Specifications
Type | Spherical Roller Bearing |
|---|---|
Bore Type | Tapered |
Material | Through Hardened Steel |
Cage Type | Pressed |
Cage Material | Steel |
Limiting Speed - Oil | 2500 RPM |
Limiting Speed - Grease | 2000 RPM |
e | 0.25 |
Y1 | 2.74 |
Y2 | 4.08 |
Y0 | 2.68 |
Series | 222 |
Radial Internal Clearance | C4 |
Ring Modification | Relube |
Tolerance | JIS-0 RBEC-1 |
Taper | 1:12 |
Static Load Rating | 227000 lbf1010000 N1010.00 kN |
Dynamic Load Rating | 205000 lbf912000 N912.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 5.5118 in140.000 mm |
|---|---|
D | 9.8425 in250.000 mm |
B | 2.6772 in68.000 mm |
d1 | 6.4173 in163.000 mm |
D1 | 8.8189 in224.000 mm |
r | 0.1181 in3.000 mm |
W0 | 0.5512 in14.000 mm |
d0 | 0.2756 in7.000 mm |
da min | 6.0630 in154.000 mm |
Da max | 9.2913 in236.000 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.
