# NTN 1320K Self-Aligning Ball Bearing - 100 mm Bore, Tapered Bore (1:12), Open - MROSupply.com

***NTN 1320K self-aligning ball bearing with a 100 mm tapered bore (1:12). This open single-row bearing accommodates shaft misalignment and is suitable for applications such as fans, blowers, and textile machinery.***



## Product details:

- Catalog number: 1320K
- SKU: 282871
- Price: ***$1,676.05*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Ball Thrust Bearings](htts://www.mrosupply.com/bearings/ball-bearings/ball-thrust-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 18.062 lb
- UPC: 4547359514575


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


## Product attributes;

  
- B (in): 1.8504
  

  
- 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): 8.4646
  

  
- d (in): 3.9370
  

  
- Da max: 7.9528 in
  

  
- da min: 4.4488 in
  

  
- Dynamic Load Rating: 31500 lbf
  

  
- Dynamic load rating: 31500 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 100 mm
  

  
- Limiting Speed - Grease: 2800 RPM
  

  
- Limiting speed - grease: 2800 RPM
  

  
- Limiting Speed - Oil: 3400 RPM
  

  
- Limiting speed - oil: 3400 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 215 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: Class 0
  

  
- r (in): 0.1181
  

  
- Radial Internal Clearance: CN
  

  
- Radial internal clearance: CN
  

  
- ras max: 0.0984 in
  

  
- Seal material: None
  

  
- Seal type: None
  

  
- Static Load Rating: 12900 lbf
  

  
- Static load rating: 12900 lbf
  

  
- Type: Self Aligning Ball Bearing
  

  
- Y0: 2.80
  

  
- Y1: 2.70
  

  
- Y2: 4.10
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048472/1267_S_G1D28om.png)
## Alternate products to `NTN 1320K Self-Aligning Ball Bearing - 100 mm Bore, Tapered Bore (1:12), Open - MROSupply.com`:
- [SKF 1320 K is a 100mm bore self-aligning ball bearing with a 1:12 tapered bore for adapter sleeve mounting. It features a sheet metal cage and is constructed from bearing steel. This bearing accommodates misalignment and is suitable for applications where shaft deflection or mounting inaccuracies occur.](https://www.mrosupply.com/products/318920/as-markdown/)
- [NSK 1320KJ self-aligning ball bearing with 100 mm bore and 1:12 tapered bore. Features a pressed steel cage. Designed to accommodate shaft misalignment in conveyor head shafts, fans, and woodworking machinery.](https://www.mrosupply.com/products/5030035/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.