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NTN 22230EMKW33 is a 222 series spherical roller bearing with a 150 mm straight bore. It features a machined brass cage and an annular lube groove with three lube holes (W33). Designed for heavy-duty industrial applications such as gearboxes, vibrating screens, and paper mills.
MODEL 22230EMKW33
$1,518.03 Each
Prices are subject to change
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Returnable: See conditions
B (in)
2.8740
Bore type
Tapered
Bore Type
Tapered
Cage material
Brass
Cage Material
Brass
Cage type
Machined
Cage Type
Machined
d (in)
5.9055
D (in)
10.6299
d0
0.2756 in
D1
9.5276 in
d1
6.9685 in
Da max
10.0787 in
da min
6.4567 in
Dynamic load rating
243000 lbf
Dynamic Load Rating
243000 lbf
e
0.25
Enclosure
Open
I.D.
150 mm
Limiting speed - grease
1800 RPM
Limiting Speed - Grease
1800 RPM
Limiting speed - oil
2300 RPM
Limiting Speed - Oil
2300 RPM
Material
Through Hardened Steel
O.D.
270 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
222
Static load rating
274000 lbf
Static Load Rating
274000 lbf
Taper
1:12
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.5906 in
Width
73 mm
Y0
2.68
Y1
2.74
Y2
4.08
Technical Specifications
Type | Spherical Roller Bearing |
Bore Type | Tapered |
Material | Through Hardened Steel |
Cage Type | Machined |
Cage Material | Brass |
Limiting Speed - Oil | 2300 RPM |
Limiting Speed - Grease | 1800 RPM |
e | 0.25 |
Y1 | 2.74 |
Y2 | 4.08 |
Y0 | 2.68 |
Series | 222 |
Radial Internal Clearance | CN |
Ring Modification | Relube |
Tolerance | JIS-0 RBEC-1 |
Taper | 1:12 |
Static Load Rating | 274000 lbf1220000 N1220.00 kN |
Dynamic Load Rating | 243000 lbf1080000 N1080.00 kN |
Enclosure | Open |
| 39.022 lb17.700 kg | |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
| |
d | 5.9055 in150.000 mm |
D | 10.6299 in270.000 mm |
B | 2.8740 in73.000 mm |
d1 | 6.9685 in177.000 mm |
D1 | 9.5276 in242.000 mm |
r | 0.1181 in3.000 mm |
W0 | 0.5906 in15.000 mm |
d0 | 0.2756 in7.000 mm |
da min | 6.4567 in164.000 mm |
Da max | 10.0787 in256.000 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.
