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NTN UELS211-203D1NR is a bearing insert with eccentric locking collar and wide inner ring. It features a 2-3/16 in (55.6 mm) bore, double sealed enclosure, and a snap ring for axial retention. The cylindrical outer diameter allows mounting in standard housings. Constructed from through hardened steel, this insert is suitable for industrial applications requiring secure shaft locking and moderate misalignment accommodation.
MODEL UELS211-203D1NR
$126.20 Each
Prices are subject to change
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a (in)
0.1732
B (in)
2.1850
B1
2.8110 in
B5
0.8150 in
Ball Material
Steel
Ball material
Steel
Basic Outer Ring
211
Bearing Type
Ball Bearing
Bore Type
Round
Bore type
Round
C (in)
0.9843
Collar Number
EL211
D (in)
3.9370
d (in)
2.1875
D1
3.8110 in
D2
4.1929 in
d3
2.9921 in
DS
3/8-24 UNF
Dynamic Load Rating
9800 lbf
Dynamic load rating
9800 lbf
Enclosure
Double Sealed
F (in)
0.2323
f (in)
0.1122
G (in)
0.3150
I.D.
2.1875 in
Locking Device
Eccentric Locking Collar
Locking device
Eccentric locking collar
Lubrication
Relubricatable
Material
Through hardened steel
O.D.
3.937 in
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Performance
Standard Duty
r (in)
0.0787
r1
0.0787 in
Radial Internal Clearance
CN
Radial internal clearance
CN
S
1.0945 in
S1
1.7165 in
Seal Material
Nitrile Rubber
Seal material
Nitrile rubber
Seal Type
Contact
Seal type
Contact
Static Load Rating
6550 lbf
Static load rating
6550 lbf
Type
Insert Bearing
Width
2.811
Technical Specifications
| Type | Insert Bearing |
|---|---|
| Bore Type | Round |
| Bearing Type | Ball Bearing |
| Material | Through Hardened Steel |
| Ball Material | Steel |
| Seal Type | Contact |
| Seal Material | Nitrile Rubber |
| Performance | Standard Duty |
| Locking Device | Eccentric Locking Collar |
| Lubrication | Relubricatable |
| Collar Number | EL211 |
| Basic Outer Ring | 211 |
| Radial Internal Clearance | CN |
| Static Load Rating | 6550 lbf29200 N29.20 kN |
| Dynamic Load Rating | 9800 lbf43500 N43.50 kN |
| Enclosure | Double Sealed |
| Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
| d | 2.1875 in55.563 mm |
|---|---|
| D | 3.9370 in100.000 mm |
| C | 0.9843 in25.000 mm |
| B | 2.1850 in55.500 mm |
| B1 | 2.8110 in71.400 mm |
| r | 0.0787 in2.000 mm |
| ds | 3/8-24 UNF |
| G | 0.3150 in8.000 mm |
| d3 | 2.9921 in76.000 mm |
| B5 | 0.8150 in20.700 mm |
| S1 | 1.7165 in43.600 mm |
| S | 1.0945 in27.800 mm |
| F | 0.2323 in5.900 mm |
| r1 | 0.0787 in2.000 mm |
| a | 0.1732 in4.400 mm |
| D1 | 3.8110 in96.800 mm |
| D2 | 4.1929 in106.500 mm |
| f | 0.1122 in2.850 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.