# NTN 2209EEG15 Self-Aligning Ball Bearing - 45 mm Bore, Straight Bore, Double Contact Sealed, Steel Cage - MROSupply.com

***NTN 2209EEG15 self-aligning ball bearing with a 45 mm straight bore. Features double contact seals and an improved geometry steel cage. Designed for applications requiring automatic misalignment compensation, such as fans, conveyors, and agricultural equipment.***



## Product details:

- Catalog number: 2209EEG15
- SKU: 828973
- Price: ***$244.29*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Self-Aligning Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/self-aligning-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- UPC: 3413520080693


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


## Product attributes;

  
- B (in): 0.9055
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Cylindrical
  

  
- Bore type: Cylindrical
  

  
- Cage Material: Nylon
  

  
- Cage material: Nylon
  

  
- Cage Type: One Piece
  

  
- Cage type: One piece
  

  
- Configuration: One
  

  
- d (in): 1.7716
  

  
- D (in): 3.3464
  

  
- Da max: 3.0709 in
  

  
- da min: 2.0276 in
  

  
- Dynamic Load Rating: 4900 lbf
  

  
- Dynamic load rating: 4900 lbf
  

  
- Enclosure: Double Sealed
  

  
- I.D.: 45 mm
  

  
- Limiting Speed - Grease: 5400 RPM
  

  
- Limiting speed - grease: 5400 RPM
  

  
- Material: Steel
  

  
- O.D.: 85 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: Class 0
  

  
- r (in): 0.0433
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- Static Load Rating: 1625 lbf
  

  
- Static load rating: 1625 lbf
  

  
- Type: Self Aligning Ball Bearing
  

  
- Width: 23 mm
  

  
- Y0: 3.20
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/47/5047496/1233_S_weYAvnC.png)
## Alternate products to `NTN 2209EEG15 Self-Aligning Ball Bearing - 45 mm Bore, Straight Bore, Double Contact Sealed, Steel Cage - MROSupply.com`:
- [SKF 2209 E-2RS1TN9 self-aligning ball bearing, 45mm bore, double sealed (NBR) with glass-fiber-reinforced polyamide cage. Enhanced internal design provides higher load capacity. Suitable for applications with shaft misalignment or deflection.](https://www.mrosupply.com/products/319094/as-markdown/)
- [FAG 2209.2RS.TV self-aligning ball bearing with 45mm bore. Double sealed for contamination protection, polyamide cage for low noise and high speed. Suitable for applications with shaft misalignment.](https://www.mrosupply.com/products/2172145/as-markdown/)
- [NSK 2209-2RSTN self-aligning ball bearing with 45 mm bore. Double contact rubber seals (2RS) and polyamide cage (TN). Tolerates shaft misalignment for conveyor head shafts, fans, and woodworking machinery.](https://www.mrosupply.com/products/5030249/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.


- What is the difference between deep groove and angular contact ball bearings?: Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors.
Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes.
If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.