# Timken RA103RR2 Fafnir RA Series Ball Bearing Insert, 1-1/4 in Bore, 2.441 in OD, 4900 lbf Dynamic Load - MROSupply.com

***Timken RA103RR2 is a Fafnir RA series wide inner ring ball bearing insert for housed units. This insert features a 1-1/4 inch bore, 2.441 inch OD, and a dynamic load rating of 4900 lbf. It is designed for use in pillow block and flange housings, providing a reliable solution for general industrial applications such as conveyors, fans, and light-duty machinery where a wide inner ring aids in mounting stability.***



## Product details:

- Catalog number: RA103RR2
- SKU: 5076203
- Price: ***$50.51*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Timken](https://www.mrosupply.com/brands/timken/)
- Category: 
    - [Inserts & Cartridges](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/inserts-cartridges/)
    - [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: 0.634 lb
- Returns: Yes


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


## Product attributes;

  
- 0.024 in Seal type: Molded Shroud Series:Standard Set screw size:5/16-18 Shaft size:1.2500 in Static load rating:11300 N
  

  
- 0.354 in Dimension: 35.7 mm
  

  
- 0.709 in Radius: 0.6 mm
  

  
- 0.938 in Inside ring width: 0.938 in Lubrication type:Non-relubricatable Number of set screws:2 O. D. type:Cylindrical OD Outside diameter:62 mm
  

  
- 1.4060 in Dimension d1: 44.1 mm
  

  
- 1.736 in Dynamic load rating: 21600 N
  

  
- 2.441 in Outside ring width: 18 mm
  

  
- 2530 lbf Sub series: RA..RR
  

  
- 4850 lbf Inner Ring Width B: 23.83 mm
  

  
- Angle between set screws: 90 °
  

  
- Bearing Type: Ball Bearing
  

  
- Bore: 1 1/4 in
  

  
- Bore type: Cylindrical bore
  

  
- Center of bearing from end: 0.354 in
  

  
- Dimension: 1.406 in
  

  
- Dynamic load rating: 4900 lbf
  

  
- Inside ring width: 0.938 in
  

  
- Lubrication type: Non-Relubricatable
  

  
- Material: Bearing steel
  

  
- Number of set screws: 2
  

  
- O. D. type: Cylindrical OD
  

  
- Outside diameter: 2.441 in
  

  
- Outside ring width: 0.709 in
  

  
- Radius: 0.024 in
  

  
- Seal type: Molded Shroud
  

  
- Series: Standard
  

  
- Set screw size: 5/16-18
  

  
- Static load rating: 2500 lbf
  

  
- Sub series: RA..RR
  
## Product documents / software:

- [Fafnir Eccentric Locking Collar Ball Bearings](https://documents.mrosupply.com/product_documents/50/76/5076203/ra103rr2_3SEC3UH)

## 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.