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NTN 23960L1W33 is a 239 series spherical roller bearing with a 300 mm straight bore. It features a brass cage, open enclosure, and an annular lube groove with three lube holes (W33). Constructed from through hardened steel, this bearing is designed for heavy-duty industrial applications such as gearboxes, conveyors, and mining equipment.
MODEL 23960L1W33
$31,480.74 Each
Prices are subject to change
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Returnable: See conditions
B (in)
3.5433
Bore type
Round
Bore Type
Round
Cage material
Brass
Cage Material
Brass
D (in)
16.5354
d (in)
11.8110
d0
0.3150 in
Da max
0.0984 in
da min
15.9843 in
Dynamic load rating
250000 lbf
Dynamic Load Rating
250000 lbf
e
3.34
Enclosure
Open
Limiting speed - grease
770 RPM
Limiting Speed - Grease
770 RPM
Limiting speed - oil
1000 RPM
Limiting Speed - Oil
1000 RPM
Material
Through Hardened Steel
r (in)
0.1181
Radial internal clearance
CN
Radial Internal Clearance
CN
ras max
0.0079 in
Ring modification
Plain
Ring Modification
Plain
Series
239
Static load rating
520000 lbf
Static Load Rating
520000 lbf
Tolerance
JIS-0 RBEC-1
Type
Spherical Roller Bearing
W0
0.2362 in
Y1
4.98
Y2
3.27
Technical Specifications
Type | Spherical Roller Bearing |
|---|---|
Bore Type | Round |
Material | Through Hardened Steel |
Cage Material | Brass |
Limiting Speed - Oil | 1000 RPM |
Limiting Speed - Grease | 770 RPM |
e | 3.34 |
Y1 | 4.98 |
Y2 | 3.27 |
Series | 239 |
Radial Internal Clearance | CN |
Ring Modification | Plain |
Tolerance | JIS-0 RBEC-1 |
Static Load Rating | 520000 lbf2320000 N2320.00 kN |
Dynamic Load Rating | 250000 lbf1110000 N1110.00 kN |
Enclosure | Open |
Weight | 85.568 lb38.813 kg |
Dimensional Specifications
| |
d | 11.8110 in300.000 mm |
|---|---|
D | 16.5354 in420.000 mm |
B | 3.5433 in90.000 mm |
r | 0.1181 in3.000 mm |
W0 | 0.2362 in6.000 mm |
d0 | 0.3150 in8.000 mm |
da min | 15.9843 in406.000 mm |
Da max | 0.0984 in2.500 mm |
ras max | 0.0079 in0.200 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.
