# NTN 5211C3 Double-Row Angular Contact Ball Bearing - 55 mm Bore, Open, Steel Cage, C3 Clearance - MROSupply.com

***NTN 5211C3 double-row angular contact ball bearing with 55 mm straight bore, open enclosure, and steel cage. C3 internal clearance accommodates thermal expansion. Suitable for pumps, compressors, and gearboxes requiring combined radial and axial load capacity.***



## Product details:

- Catalog number: 5211C3
- SKU: 281138
- Price: ***$119.82*** 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: 2.064 lb


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


## Product attributes;

  
- a (in): 2.3819
  

  
- B (in): 1.3110
  

  
- 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: 25 º
  

  
- D (in): 3.9370
  

  
- d (in): 2.1654
  

  
- Da max: 3.5827 in
  

  
- da min: 2.5197 in
  

  
- Dynamic Load Rating: 12600 lbf
  

  
- Dynamic load rating: 12600 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 55 mm
  

  
- Limiting Speed - Grease: 4300 RPM
  

  
- Limiting speed - grease: 4300 RPM
  

  
- Limiting Speed - Oil: 5600 RPM
  

  
- Limiting speed - oil: 5600 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 100 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Outside Ring Type: Straight
  

  
- Precision: Class 0
  

  
- r (in): 0.0591
  

  
- Radial Internal Clearance: C3
  

  
- Radial internal clearance: C3
  

  
- ras max: 0.0591 in
  

  
- Static Load Rating: 11000 lbf
  

  
- Static load rating: 11000 lbf
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/47/5047329/1227_S_uAkgpqE.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/52/5211C3/bearingfinder_2d_pdf_fixed_5211C3_neAw9Xd.pdf)
## Alternate products to `NTN 5211C3 Double-Row Angular Contact Ball Bearing - 55 mm Bore, Open, Steel Cage, C3 Clearance - MROSupply.com`:
- [Rollway 3211 C3 55 mm Bore Size, 100 mm Outside Diameter, Angular Contact Ball Bearing, Double Row, Straight Bore, 52100 Bearing Steel, C3 Radial Clearance](https://www.mrosupply.com/products/2889765/as-markdown/)
- [Koyo 5211 double-row angular contact ball bearing with 55 mm bore, 100 mm OD, and 33.3 mm width. Open type design accommodates combined radial and axial loads in both directions. Suitable for pumps, compressors, and gearboxes.](https://www.mrosupply.com/products/1494524/as-markdown/)
- [SKF 3211 E/C3 double-row angular contact ball bearing, 55mm bore, 2 1/6 in ID, 3 8/9 in 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/2069152/as-markdown/)
- [NTN 3211C3 32 series double-row angular contact ball bearing with a 55 mm straight bore. Open design with no seals or shields and C3 internal clearance for applications requiring thermal expansion accommodation. Suitable for pumps, compressors, and gearboxes where combined radial and axial loads are present.](https://www.mrosupply.com/products/281616/as-markdown/)
- [NSK 3211JC3 double-row angular contact ball bearing with 55 mm bore, pressed steel cage, and C3 clearance. Carries combined radial and axial loads in both directions; common in pumps and machine tools. Backed by NSK's precision-bearing engineering heritage.](https://www.mrosupply.com/products/5032583/as-markdown/)
- [NSK 5211TNC3 double-row angular contact ball bearing with 55 mm bore, polyamide cage, and C3 clearance. Carries combined radial and axial loads in both directions; suitable for pumps and machine tools.](https://www.mrosupply.com/products/5032959/as-markdown/)
- [FAG 3211-BD-C3 double row angular contact ball bearing with 55mm bore and 100mm OD. Features a 40° contact angle for high axial load capacity in both directions. C3 internal clearance accommodates thermal expansion. Suitable for pumps, compressors, and gearboxes.](https://www.mrosupply.com/products/2174435/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.