# NTN 3208C3 Double-Row Angular Contact Ball Bearing - 40 mm Bore, Open Type, C3 Clearance - MROSupply.com

***NTN 3208C3 is a 32 series double-row angular contact ball bearing with a 40 mm straight bore. Open type with C3 clearance. Designed for combined radial and axial loads in gearboxes, pumps, and compressors.***



## Product details:

- Catalog number: 3208C3
- SKU: 281621
- Price: ***$153.21*** 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
- Weight: 1.424 lb
- UPC: 4547359528848


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


## Product attributes;

  
- a (in): 1.9291
  

  
- B (in): 1.1890
  

  
- 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: 32 º
  

  
- D (in): 3.1496
  

  
- d (in): 1.5748
  

  
- Da max: 2.8740 in
  

  
- da min: 1.8504 in
  

  
- Dynamic Load Rating: 10300 lbf
  

  
- Dynamic load rating: 10300 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 40 mm
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 80 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Outside Ring Type: Straight
  

  
- Precision: Class 0
  

  
- r (in): 0.0433
  

  
- Radial Internal Clearance: C3
  

  
- Radial internal clearance: C3
  

  
- ras max: 0.0394 in
  

  
- Static Load Rating: 11400 lbf
  

  
- Static load rating: 11400 lbf
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/47/5047109/1226_S_pwNYU8H.png)
## Alternate products to `NTN 3208C3 Double-Row Angular Contact Ball Bearing - 40 mm Bore, Open Type, C3 Clearance - MROSupply.com`:
- [Koyo 5208 double-row angular contact ball bearing with a 40 mm bore and 80 mm outside diameter. This light series bearing features a straight bore design for accommodating combined radial and axial loads in industrial machinery, pumps, and gearboxes.](https://www.mrosupply.com/products/1494515/as-markdown/)
- [SKF 3208 E/C3 double-row angular contact ball bearing, 40mm bore, 80mm OD, C3 clearance, enhanced steel cage. Designed for combined radial and axial loads in both directions. Suitable for pumps, gearboxes, and industrial machinery.](https://www.mrosupply.com/products/2069144/as-markdown/)
- [Rollway 3208 C3 40 mm Bore Size, 80 mm Outside Diameter, Angular Contact Ball Bearing, Double Row, Straight Bore, 52100 Bearing Steel, C3 Radial Clearance](https://www.mrosupply.com/products/2889755/as-markdown/)
- [NTN 5208C3 is a double-row angular contact ball bearing with a 40 mm straight bore. Open enclosure, steel cage, and C3 clearance. Designed for combined radial and axial loads in gearboxes, pumps, and industrial machinery.](https://www.mrosupply.com/products/281194/as-markdown/)
- [NSK 3208JC3 double-row angular contact ball bearing with 40 mm bore, pressed steel cage, and C3 clearance. Designed for combined radial and axial loads in both directions, it is commonly used in pumps and machine tools.](https://www.mrosupply.com/products/5032574/as-markdown/)
- [FAG 3208-BD-C3 double row angular contact ball bearing with 40mm bore and 80mm OD. Features a 40° contact angle for high axial load capacity in both directions. C3 internal clearance accommodates thermal expansion. Open design suitable for various industrial applications.](https://www.mrosupply.com/products/2174404/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.