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NTN UCPX-3.7/16 is an Ultra-Class 2-bolt heavy-duty pillow block unit with a 3-7/16 in (87.3 mm) bore. Features a set screw locking mechanism and a cast iron housing. Designed for high-load industrial applications such as conveyors, fans, and heavy machinery.
MODEL UCPX-3.7/16
$744.95 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable:No
A (in)
4.3750
B (in)
4.0945
Bearing Number
A-UCX18-307D1
Bearing number
A-UCX18-307D1
Bearing Type
Ball Bearing
d (in)
3 7/16
Dynamic Load Rating
24500 lbf
Dynamic load rating
24500 lbf
End Type
Open
End type
Open
F (in)
0.4134
Finish/Coating
Black oxide
H (in)
4
H1
1.3125 in
H2
8.0000 in
Housing Construction
1 Piece
Housing construction
1 Piece
Housing Material
Cast Iron
Housing material
Cast iron
Housing Number
PX18D1V50
I.D.
3.4375 in
J (in)
10-31/32
L (in)
14.0000
L1
4.3438 in
Locking Device
Set Screw
Locking device
Set screw
Lubrication
Relubricatable
Max Rotational Speed
1300 RPM
Max Tightening Torque
260 lb·in
N (in)
0.9375
N1
2.0000 in
O.D.
6.6929 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Performance
Light Duty
S
1.6890 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
18400 lbf
Static load rating
18400 lbf
Type
Pillow Block Unit
Width
4.0945 in
Technical Specifications
Type | Pillow Block Unit |
Bearing Type | Ball Bearing |
Locking Device | Set Screw |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Bearing Number | A-UCX18-307D1 |
Housing Number | PX18D1V50 |
Housing Material | Cast Iron |
Housing Construction | 1 Piece |
End Type | Open |
Finish/Coating | Black Oxide |
Performance | Light Duty |
Dynamic Load Rating | 24500 lbf109000 N109.00 kN |
Static Load Rating | 18400 lbf82000 N82.00 kN |
Max Tightening Torque | 260 lb·in |
Rotational Speed [Max] | 1300 RPM |
Weight | 55.116 lb25.000 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.4375 in87.313 mm |
J | 10.9688 in278.6 mm |
L | 14.0000 in355.6 mm |
A | 4.3750 in111.1 mm |
H | 4 in101.6 mm |
H1 | 1.3125 in33.3 mm |
H2 | 8.0000 in203.2 mm |
N | 0.9375 in23.8 mm |
N1 | 2.0000 in50.8 mm |
L1 | 4.3438 in110.3 mm |
B | 4.0945 in104.000 mm |
S | 1.6890 in42.900 mm |
F | 0.4134 in10.500 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.
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