# NTN CM-UCF208D1 Cast Iron Cover for UCF208 4-Bolt Square Flange Mounted Unit, Set Screw Lock, Closed-End Dust Cover - MROSupply.com

***NTN CM-UCF208D1 cast iron bearing accessory, a closed-end dust cover designed for UCF208 series 4-bolt square flange mounted units. Features set screw lock and durable cast iron construction for industrial conveyor and machinery applications requiring protection.***



## Product details:

- Catalog number: CM-UCF208D1
- SKU: 276068
- Price: ***$138.53*** 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: 4.900 lb


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


## Product attributes;

  
- A (in): 1.417
  

  
- A1: 0.5937 in
  

  
- A2: 0.8281 in
  

  
- A5: 2.5980 in
  

  
- Axial Static Load Rating: 4002 lbf
  

  
- Axial static load rating: 4002 lbf
  

  
- B (in): 1.9370
  

  
- Ball Material: Through Hardened Steel
  

  
- Ball material: Through hardened steel
  

  
- Bearing Number: UC208D1
  

  
- Bearing number: UC208D1
  

  
- Bearing Type: Ball Bearing
  

  
- Bore Type: Cylindrical
  

  
- Bore type: Cylindrical
  

  
- Cage Material: Pressed Steel
  

  
- Cage material: Pressed steel
  

  
- Clearance: CN
  

  
- d (in): 1.5750
  

  
- Dynamic Load Rating: 6542 lbf
  

  
- Dynamic load rating: 6542 lbf
  

  
- Enclosure: Flinger Seal - Both Sides
  

  
- End Type: Closed
  

  
- End type: Closed
  

  
- F (in): 0.1772
  

  
- Housing Construction: 1 Piece
  

  
- Housing construction: 1 Piece
  

  
- Housing Material: Cast Iron
  

  
- Housing material: Cast iron
  

  
- Housing Number: CM-F208D1
  

  
- I.D.: 1.5748 in
  

  
- J (in): 4.0156
  

  
- L (in): 5.1180
  

  
- Locking Device: Set Screw
  

  
- Locking device: Set screw
  

  
- Lubrication: Relubricatable
  

  
- Max Rotational Speed: 3700 RPM
  

  
- N (in): 0.6250
  

  
- Number of Holes: 4
  

  
- Number of holes: 4
  

  
- O.D. (in): 3.1500
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Outside Diameter: 3.1500 in
  

  
- Outside Ring Type: Spherical OD
  

  
- Performance: Light Duty
  

  
- Precision Rating: ISO Class 0
  

  
- Precision rating: ISO class 0
  

  
- Radial Dynamic Load Rating: 6542 lbf
  

  
- Rotational Speed [Max]-Grease: 3700 RPM
  

  
- Rotational Speed [Max]-Oil: 0 RPM
  

  
- S: 0.7480 in
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Static Load Rating: 4002 lbf
  

  
- Static load rating: 4002 lbf
  

  
- Type: 4-Bolt Square Flanged Unit
  

  
- Width: 1.937 in
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048456/Screw--Cast-Dust-Cover--Closed-End--UCF-Type_S_1cJS2hr.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.