# NTN 5309EEG15 Double-Row Angular Contact Ball Bearing - 45 mm Bore, Double Sealed, Steel Cage - MROSupply.com

***NTN 5309EEG15 double-row angular contact ball bearing with 45 mm straight bore, double sealed, and steel cage. High carbon chrome steel construction for combined radial and axial loads in compact assemblies. Suitable for pumps, electric motors, and gearboxes.***



## Product details:

- Catalog number: 5309EEG15
- SKU: 830003
- Price: ***$173.52*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Double Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/double-row-angular-contact-bearings/)
    - [Angular Contact Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- UPC: 3413520105945


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


## Product attributes;

  
- a (in): 2.3622
  

  
- B (in): 1.5630
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Steel
  

  
- Cage material: Steel
  

  
- Cage Type: Pressed
  

  
- Cage type: Pressed
  

  
- Configuration: Two
  

  
- Contact angle: 0 º
  

  
- D (in): 3.9370
  

  
- d (in): 1.7717
  

  
- Enclosure: Double Sealed
  

  
- Limiting Speed - Grease: 4000 RPM
  

  
- Limiting speed - grease: 4000 RPM
  

  
- Material: High carbon chrome steel
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Outside Ring Type: Straight
  

  
- Precision: Class 0
  

  
- r (in): 0.0591
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- Seal Material: Nitrile Rubber
  

  
- Seal material: Nitrile rubber
  

  
- Seal Type: Contact
  

  
- Seal type: Contact
  

  
- Type: Angular Contact Ball Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/45/5045664/1230_S_ExhbNt8.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/53/5309EEG15/bearingfinder_2d_pdf_fixed_5309EEG15_uYKZFkK.pdf)
## Alternate products to `NTN 5309EEG15 Double-Row Angular Contact Ball Bearing - 45 mm Bore, Double Sealed, Steel Cage - MROSupply.com`:
- [NSK 3309B-2RSTN double-row angular contact ball bearing with 45 mm bore. Double contact rubber seals (2RS) and polyamide cage (TN). Carries combined radial and axial loads in both directions; commonly used in pumps and machine tools.](https://www.mrosupply.com/products/5032687/as-markdown/)
- [FAG 3309BD.2HRS.TVH double row angular contact ball bearing, 45mm bore, double sealed, polyamide cage. Designed for high radial and axial loads in industrial applications. Double seals provide contamination protection, while the polyamide cage enables low noise and high-speed operation.](https://www.mrosupply.com/products/2174607/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.