# NTN 7320BL1BG Angular Contact Ball Bearing - 100 mm Bore, Open Type, Brass Cage - MROSupply.com

***NTN 7320BL1BG is a single-row angular contact ball bearing with a 100 mm straight bore. It features an open enclosure and a brass cage, suitable for high-speed and high-precision applications such as machine tool spindles and pumps.***



## Product details:

- Catalog number: 7320BL1BG
- SKU: 277561
- Price: ***$988.85*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Single Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/single-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: 16.138 lb
- UPC: 4547359453430


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


## Product attributes;

  
- a (Load Center): 3.5236 in
  

  
- B (in): 1.8504
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Brass
  

  
- Cage material: Brass
  

  
- Cage Type: Machined
  

  
- Cage type: Machined
  

  
- Configuration: One
  

  
- Contact angle: 40 º
  

  
- D (in): 8.4646
  

  
- d (in): 3.9370
  

  
- Da max: 7.9134 in
  

  
- da min: 4.4882 in
  

  
- Db max: 8.1890 in
  

  
- db min: 4.2126 in
  

  
- Double Row Width: 3.7008 in
  

  
- Dynamic Load Rating: 42500 lbf
  

  
- Dynamic load rating: 42500 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 100 mm
  

  
- Limiting Speed - Grease: 3000 RPM
  

  
- Limiting speed - grease: 3000 RPM
  

  
- Limiting Speed - Oil: 4000 RPM
  

  
- Limiting speed - oil: 4000 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: ISO class 0
  

  
- Quadruple Row Width: 7.4016 in
  

  
- r (in): 0.1181
  

  
- r1: 0.0433 in
  

  
- r1as max: 0.0394 in
  

  
- ras max: 0.0984 in
  

  
- Static Load Rating: 40000 lbf
  

  
- Static load rating: 40000 lbf
  

  
- Triple Row Width: 5.5512 in
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/59/73/5973972/1162_S_9Tu0vwD.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/73/7320BL1BG/bearingfinder_2d_pdf_fixed_7320BL1BG_7p6mHu2.pdf)
## Alternate products to `NTN 7320BL1BG Angular Contact Ball Bearing - 100 mm Bore, Open Type, Brass Cage - MROSupply.com`:
- [SKF 7320 BECBM angular contact ball bearing, 100mm bore, 40° contact angle, machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313907/as-markdown/)
- [SKF 7320 BECBY is a 100mm bore angular contact ball bearing with a 40° contact angle and a machined brass cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313810/as-markdown/)
- [SKF 7320 BECCM angular contact ball bearing, 100mm bore, 40° contact angle, machined steel cage. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/313613/as-markdown/)
- [NSK 7320BMPC single-row angular contact ball bearing with 100 mm bore and 40° contact angle. Features a machined brass cage for high-speed and heavy-load applications. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/5035347/as-markdown/)
- [Nachi Bearing 7320BMUC3 Angular Contact Ball Bearing Single Flush Ground 40](https://www.mrosupply.com/products/5900208/as-markdown/)
- [Rollway 7320 BM 100 mm Bore Size, 215 mm Outside Diameter, Angular Contact Ball Bearing, Straight Bore, 52100 Bearing Steel, Normal Radial Clearance](https://www.mrosupply.com/products/2889903/as-markdown/)
- [NTN 7320BL1 is a single-row angular contact ball bearing with a 100 mm straight bore. Open type design with no seals or shields. Suitable for high-speed and combined radial-axial load applications in pumps, compressors, and machine tool spindles.](https://www.mrosupply.com/products/5048016/as-markdown/)
- [NSK 7321BMPC single-row angular contact ball bearing with 105 mm bore and 40° contact angle. Features a machined brass cage for high-speed and heavy-load applications. Designed for combined radial and axial loads in pumps, gearboxes, and machine-tool spindles.](https://www.mrosupply.com/products/5035349/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.