# NTN 1216KC3 Self-Aligning Ball Bearing - 80 mm Bore, Open, Steel Cage, C3 Clearance - MROSupply.com

***NTN 1216KC3 self-aligning ball bearing with 80 mm straight bore, open design, steel cage, and C3 radial internal clearance. Single-row construction accommodates static and dynamic misalignment in fans, blowers, and conveying equipment. High carbon chrome steel rings and balls provide durability under moderate radial and axial loads.***



## Product details:

- Catalog number: 1216KC3
- SKU: 828835
- Price: ***$256.66*** 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: 4547359255898


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


## Product attributes;

  
- B (in): 1.0236
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Tapered
  

  
- Bore type: Tapered
  

  
- Cage Material: Steel
  

  
- Cage material: Steel
  

  
- Cage Type: Pressed
  

  
- Cage type: Pressed
  

  
- Configuration: One
  

  
- D (in): 5.5118
  

  
- d (in): 3.1496
  

  
- Da max: 5.1575 in
  

  
- da min: 3.5039 in
  

  
- Dynamic Load Rating: 9000 lbf
  

  
- Dynamic load rating: 9000 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 80 mm
  

  
- Limiting Speed - Grease: 4000 RPM
  

  
- Limiting speed - grease: 4000 RPM
  

  
- Limiting Speed - Oil: 5000 RPM
  

  
- Limiting speed - oil: 5000 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 140 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: Class 0
  

  
- r (in): 0.0787
  

  
- Radial Internal Clearance: C3
  

  
- Radial internal clearance: C3
  

  
- ras max: 0.0787 in
  

  
- Seal material: None
  

  
- Seal type: None
  

  
- Static Load Rating: 3800 lbf
  

  
- Static load rating: 3800 lbf
  

  
- Type: Self Aligning Ball Bearing
  

  
- Y0: 4.10
  

  
- Y1: 3.90
  

  
- Y2: 6.00
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048472/1267_S_G1D28om.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/12/1216KC3/bearingfinder_2d_pdf_fixed_1216KC3_Qf1WpnF.pdf)






## 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.