# Timken UCF203 UC-Series Ball Housed Unit, 4-Bolt Flange Mount, 17mm Bore, Setscrew Locking - MROSupply.com

***Timken UCF203 is a UC-series ball bearing housed unit with a four-bolt flange mount. It features a UC203 deep groove ball bearing insert with a 17mm bore and setscrew locking. The cast iron housing provides a static load rating of 1,495 lbf and a dynamic load rating of 2,878 lbf for general industrial applications such as conveyors, fans, and light-duty machinery.***



## Product details:

- Catalog number: UCF203
- SKU: 5100947
- Call for Pricing - 888-671-2883
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- 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: 1.400 lb
- Returns: Yes


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


## Product attributes;

  
- 0.438 in Dimension A0: 33.3 mm
  

  
- 0.438 in Grease nipple size: A-1/4-28UNF Housing construction:Four-Bolt Square Flange Housing width:25.5 mm
  

  
- 0.469 in Bolt hole spacing: 64 mm
  

  
- 0.5 in Center of bearing from housing end: 15 mm
  

  
- 1 in Inner Ring Width B: 31 mm
  

  
- 1.22 in Inside ring width: 1.220 in Locking style:Set Screw Locking Shaft size:17 mm Static load rating:6650 N
  

  
- 1.313 in Dynamic load rating: 12800 N
  

  
- 1495 lbf Total length: 86 mm
  

  
- 2.516 in Bolt size: M10 Center of bearing from bearing end:12.7 mm
  

  
- 2878 lbf Flange thickness: 11 mm
  

  
- 3.375 in Total width: 1.312 in
  

  
- Bearing number: UC203
  

  
- Bolt hole size: 0.469 in
  

  
- Bolt hole spacing: 2.516 in
  

  
- Bolt Size: M10
  

  
- Center of bearing from bearing end: 0.500 in
  

  
- Center of bearing from housing end: 0.594 in
  

  
- Dynamic load rating: 2878 lbf
  

  
- Flange thickness: 0.438 in
  

  
- Grease nipple size: M6
  

  
- Inside ring width: 1.220 in
  

  
- Static load rating: 1495 lbf
  

  
- Total length: 3.375 in
  

  
- Total width: 1.312 in
  
## Product documents / software:

- [Ucf Four Bolt Flange Units](https://documents.mrosupply.com/product_documents/51/00/5100947/ucf203)

## Product's reviews:
- Best company to buy from - I always buy from MRO is a very reliable company to work with




## 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.