# NTN UELFU-1.1/4S ULK 4-Bolt Square Flanged Unit - 1-1/4 in (31.8 mm) Bore, Eccentric Collar Lock, Cast Iron Housing - MROSupply.com

***NTN UELFU-1.1/4S ULK 4-bolt square flanged unit with a 1-1/4 in (31.8 mm) bore, eccentric collar lock, and cast iron housing. This ultra-class mounted unit is designed for heavy-duty industrial applications requiring secure shaft locking and easy installation.***



## Product details:

- Catalog number: UELFU-1.1/4S
- SKU: 269134
- Price: ***$110.39*** 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: 2.932 lb


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


## Product attributes;

  
- A (in): 1.3125
  

  
- A0: 1.9688 in
  

  
- A1: 0.6250 in
  

  
- A2: 0.7813 in
  

  
- B1: 1.9055 in
  

  
- Bearing Number: A-UEL206-104D1
  

  
- Bearing number: A-UEL206-104D1
  

  
- Bearing Type: Ball Bearing
  

  
- d (in): 1 1/4
  

  
- Dynamic Load Rating: 4400 lbf
  

  
- Dynamic load rating: 4400 lbf
  

  
- End Type: Open
  

  
- End type: Open
  

  
- F (in): 0.1811
  

  
- Finish/Coating: Black oxide
  

  
- Housing Construction: 1 Piece
  

  
- Housing construction: 1 Piece
  

  
- Housing Material: Cast Iron
  

  
- Housing material: Cast iron
  

  
- Housing Number: FU206D1V50
  

  
- I.D.: 1.25 in
  

  
- J (in): 3.2500
  

  
- L (in): 4.2813
  

  
- Locking Device: Eccentric Locking Collar
  

  
- Locking device: Eccentric locking collar
  

  
- Lubrication: Relubricatable
  

  
- Max Rotational Speed: 4900 RPM
  

  
- Max Tightening Torque: 86 lb·in
  

  
- N (in): 0.4531
  

  
- O.D.: 2.4409 in
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Performance: Light Duty
  

  
- S: 0.7205 in
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Static Load Rating: 2540 lbf
  

  
- Static load rating: 2540 lbf
  

  
- Type: 4-Bolt Square Flanged Unit
  

  
- Width: 1.9055 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/46/5046730/olt-Flanged-Unit--Eccentric-Lock--UELFU-Type_S_PMwZYKx.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/UE/UELFU-1.1/4S/bearingfinder_2d_pdf_fixed_UELFU-1.12F4S_HJy1uCe.pdf)






## 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.