# NTN JELFU-1.3/4 Ultra-Class Four-Bolt Flanged Unit - 1-3/4 inch Bore, Eccentric Collar Lock, Cast Iron Housing - MROSupply.com

***NTN JELFU-1.3/4 Ultra-Class four-bolt flanged unit with 1-3/4 inch bore and eccentric collar lock. Cast iron housing provides durability for industrial conveyor, fan, and material handling applications.***



## Product details:

- Catalog number: JELFU-1.3/4
- SKU: 274755
- Price: ***$125.57*** 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


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


## Product attributes;

  
- A (in): 1.5625
  

  
- A0: 2.3189 in
  

  
- A1: 0.7188 in
  

  
- A2: 0.9375 in
  

  
- B1: 1.7200 in
  

  
- Bearing Number: A-JEL209-112D1
  

  
- Bearing number: A-JEL209-112D1
  

  
- Bearing Type: Ball Bearing
  

  
- d (in): 1 3/4
  

  
- Dynamic Load Rating: 7350 lbf
  

  
- Dynamic load rating: 7350 lbf
  

  
- End Type: Open
  

  
- End type: Open
  

  
- Finish/Coating: Black oxide
  

  
- Housing Construction: 1 Piece
  

  
- Housing construction: 1 Piece
  

  
- Housing Material: Cast Iron
  

  
- Housing material: Cast iron
  

  
- Housing Number: FU209D1V50
  

  
- I.D.: 1.75 in
  

  
- J (in): 4.1250
  

  
- L (in): 5.4063
  

  
- Locking Device: Eccentric Locking Collar
  

  
- Locking device: Eccentric locking collar
  

  
- Lubrication: Relubricatable
  

  
- N (in): 0.5156
  

  
- O.D.: 3.3465 in
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Performance: Light Duty
  

  
- S: 0.4330 in
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Static Load Rating: 4600 lbf
  

  
- Static load rating: 4600 lbf
  

  
- Type: 4-Bolt Square Flanged Unit
  

  
- Width: 1.7205 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/27/47/274762/olt-Flanged-Unit--Eccentric-Lock--JELFU-Type_S.png)
## Alternate products to `NTN JELFU-1.3/4 Ultra-Class Four-Bolt Flanged Unit - 1-3/4 inch Bore, Eccentric Collar Lock, Cast Iron Housing - MROSupply.com`:
- [Dodge 130335 F4B-SXV-112 four-bolt flange ball bearing featuring 1-3/4" bore, eccentric collar locking, intermediate duty rating, cast iron housing, DualGuard seal protection, and 209 series insert for general industrial applications.](https://www.mrosupply.com/products/125251/as-markdown/)






## 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.