# NTN UCP309-111D1 2-Bolt Pillow Block Bearing - 1-11/16 in (42.9 mm) Bore, Set Screw Lock, Cast Iron Housing - MROSupply.com

***NTN UCP309-111D1 is a 2-bolt cast-iron pillow block mounted unit with a set screw locking insert. The bore measures 1-11/16 in (42.9 mm). This pre-lubricated ball bearing unit is designed for general industrial conveyor and machinery applications requiring reliable radial load support.***



## Product details:

- Catalog number: UCP309-111D1
- SKU: 269540
- Price: ***$227.07*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [2-Bolt Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/pillow-block-bearings/2-bolt-pillow-block-bearings/)
    - [Pillow Block Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/pillow-block-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: 9.660 lb
- UPC: 4547359226225


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


## Product attributes;

  
- I.D.: 1.6875 in
  

  
- O.D.: 3.937 in
  

  
- Width: 2.2441 in
  







## 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.