# NTN UELFU211-203D1 ULK 4-Bolt Flange Bearing - 2-3/16 in (55.6 mm) Bore, Eccentric Collar Lock, Cast Iron Housing - MROSupply.com

***NTN UELFU211-203D1 is a ULK 4-bolt flange mounted bearing unit with an eccentric collar locking mechanism. It features a cast iron housing and a 2-3/16 in (55.6 mm) bore. Designed for heavy-duty industrial applications requiring secure shaft mounting and easy installation.***



## Product details:

- Catalog number: UELFU211-203D1
- SKU: 269093
- Price: ***$139.17*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [4-Bolt Flange](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/flanged-mounted-bearings/4-bolt-flange/)
    - [Flanged Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/flanged-mounted-bearings/)
    - [Mounted Ball Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/)
    - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 8.600 lb


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- A (in): 1.9375
  

  
- A0: 2.9375 in
  

  
- A1: 0.8125 in
  

  
- A2: 1.2187 in
  

  
- B1: 2.8110 in
  

  
- Bearing Number: UEL211-203D1
  

  
- Bearing number: UEL211-203D1
  

  
- Bearing Type: Ball Bearing
  

  
- d (in): 2.1875
  

  
- Dynamic Load Rating: 9800 lbf
  

  
- Dynamic load rating: 9800 lbf
  

  
- End Type: Open
  

  
- End type: Open
  

  
- F (in): 0.2362
  

  
- Housing Construction: 1 Piece
  

  
- Housing construction: 1 Piece
  

  
- Housing Material: Cast Iron
  

  
- Housing material: Cast iron
  

  
- Housing Number: FU211D1
  

  
- I.D.: 2.1875 in
  

  
- J (in): 5.1
  

  
- L (in): 6.4
  

  
- Locking Device: Eccentric Locking Collar
  

  
- Locking device: Eccentric locking collar
  

  
- Lubrication: Relubricatable
  

  
- Max Rotational Speed: 2900 RPM
  

  
- N (in): 0.7031
  

  
- O.D.: 3.937 in
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Performance: Light Duty
  

  
- S: 1.0945 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: 4-Bolt Square Flanged Unit
  

  
- Width: 2.811 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/46/5046370/ousing--Eccentric-Locking-Collar--UELFU-Type_S_fNAQnK9.png)






## FAQ:

- 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.