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NTN UELP311-203D1 is a 2-bolt cast-iron pillow block with an eccentric collar locking mechanism. It features a 2-3/16 in (55.6 mm) bore and a ball bearing insert. Designed for general industrial conveyor and machinery applications where easy shaft mounting and secure locking are required.
MODEL UELP311-203D1
$343.45 Each
Prices are subject to change
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Returnable:No
A (in)
3.1562
B1
2.8740 in
Bearing Number
UEL311-203D1
Bearing number
UEL311-203D1
Bearing Type
Ball Bearing
d (in)
2.1875
Dynamic Load Rating
16100 lbf
Dynamic load rating
16100 lbf
End Type
Open
End type
Open
F (in)
0.3346
H (in)
3.1562
H1
1.1875 in
H2
6.0625 in
Housing Construction
1 Piece
Housing construction
1 Piece
Housing Material
Cast Iron
Housing material
Cast iron
Housing Number
P311D1
I.D.
2.1875 in
J (in)
9.2812
L (in)
12.2187
L1
3.3437 in
Locking Device
Eccentric Locking Collar
Locking device
Eccentric locking collar
Lubrication
Relubricatable
Max Rotational Speed
2600 RPM
N (in)
0.7812
N1
1.5000 in
O.D.
4.7244 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Performance
Heavy duty
S
1.0945 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
10100 lbf
Static load rating
10100 lbf
Type
Pillow Block Unit
Width
2.874 in
Technical Specifications
Type | Pillow Block Unit |
Bearing Type | Ball Bearing |
Locking Device | Eccentric Locking Collar |
Seal Type | Contact |
Seal Material | Nitrile Rubber |
Bearing Number | UEL311-203D1 |
Housing Number | P311D1 |
Housing Material | Cast Iron |
Housing Construction | 1 Piece |
End Type | Open |
Performance | Heavy Duty |
Dynamic Load Rating | 16100 lbf71500 N71.50 kN |
Static Load Rating | 10100 lbf45000 N45.00 kN |
Rotational Speed [Max] | 2600 RPM |
| 17.278 lb7.837 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.1875 in55.563 mm |
J | 9.2812 in236.0 mm |
L | 12.2187 in310.0 mm |
A | 3.1562 in80.0 mm |
H | 3.1562 in80.0 mm |
H1 | 1.1875 in30.0 mm |
H2 | 6.0625 in154.0 mm |
L1 | 3.3437 in85.0 mm |
N | 0.7812 in20.0 mm |
N1 | 1.5000 in38.0 mm |
B1 | 2.8740 in73.000 mm |
S | 1.0945 in27.800 mm |
F | 0.3346 in8.500 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.
