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The NTN 23934EMW33 is a 239 series spherical roller bearing with a 170 mm straight bore. It features a machined brass cage and an annular lube groove (W33) for effective lubrication. Designed for heavy-duty industrial applications such as gearboxes, pumps, and paper mills.
MODEL 23934EMW33
$1,966.13 Each
Prices are subject to change
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Returnable:No
B (in)
1.7717
Bore type
Round
Bore Type
Round
Cage material
Brass
Cage Material
Brass
D (in)
9.0551
d (in)
6.6929
d0
0.1772 in
d1
7.2835 in
D1
8.4646 in
Da max
8.7008 in
da min
7.0472 in
Dynamic load rating
105000 lbf
Dynamic Load Rating
105000 lbf
e
0.16
Enclosure
Open
I.D.
170 mm
Limiting speed - grease
1800 RPM
Limiting Speed - Grease
1800 RPM
Material
Through Hardened Steel
O.D.
230 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
Plain
Ring Modification
Plain
Series
239
Static load rating
163000 lbf
Static Load Rating
163000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.3543 in
Y0
4.02
Y1
4.11
Y2
6.12
Technical Specifications
Type | Spherical Roller Bearing |
|---|---|
Bore Type | Round |
Material | Through Hardened Steel |
Cage Material | Brass |
Limiting Speed - Grease | 1800 RPM |
e | 0.16 |
Y1 | 4.11 |
Y2 | 6.12 |
Y0 | 4.02 |
Series | 239 |
Radial Internal Clearance | CN |
Ring Modification | Plain |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 163000 lbf723000 N723.00 kN |
Dynamic Load Rating | 105000 lbf468000 N468.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 400 F-40 to 200 C |
Dimensional Specifications
|
| |
d | 6.6929 in170.000 mm |
|---|---|
D | 9.0551 in230.000 mm |
B | 1.7717 in45.000 mm |
d1 | 7.2835 in185.000 mm |
D1 | 8.4646 in215.000 mm |
r | 0.0787 in2.000 mm |
W0 | 0.3543 in9.000 mm |
d0 | 0.1772 in4.500 mm |
da min | 7.0472 in179.000 mm |
Da max | 8.7008 in221.000 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.
| Brand | MasterDrive |
| Model | 4B300-3030 |
