# NTN HTA016ADB/GNP4L Angular Contact Ball Bearing - 80 mm Bore, Duplex, Phenolic Cage, Open, P4 Precision - MROSupply.com

***NTN HTA016ADB/GNP4L is a duplex angular contact ball bearing with an 80 mm straight bore, open enclosure, and phenolic cage. Designed for main spindle applications, this high-precision bearing handles axial loads in machine tool spindles.***



## Product details:

- Catalog number: HTA016ADB/GNP4L
- SKU: 274888
- Price: ***$3,094.32*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NTN Bearing](https://www.mrosupply.com/brands/ntn-bearing/)
- Category: 
    - [Inserts & Cartridges](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/inserts-cartridges/)
    - [Mounted Ball Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/)
    - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 3.763 lb


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


## Product attributes;

  
- 2a: 3.1417 in
  

  
- 2B: 1.5945 in
  

  
- B (in): 0.7972
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Phenolic
  

  
- Cage material: Phenolic
  

  
- Cage Type: Machined
  

  
- Cage type: Machined
  

  
- Configuration: Two
  

  
- Contact angle: 30 º
  

  
- d (in): 3.1496
  

  
- D (in): 4.9213
  

  
- d1: 3.8346 in
  

  
- D2: 4.4291 in
  

  
- da min: 3.5433 in
  

  
- Db max: 4.6850 in
  

  
- Dynamic Load Rating: 9550 lbf
  

  
- Dynamic load rating: 9550 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 80 mm
  

  
- Limiting Speed - Grease: 9800 RPM
  

  
- Limiting speed - grease: 9800 RPM
  

  
- Limiting Speed - Oil: 12200 RPM
  

  
- Limiting speed - oil: 12200 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 125 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 4
  

  
- Preload: Normal
  

  
- r (in): 0.0433
  

  
- r1: 0.0236 in
  

  
- r1as max: 0.0236 in
  

  
- ras max: 0.0394 in
  

  
- Static Load Rating: 23600 lbf
  

  
- Static load rating: 23600 lbf
  

  
- Type: Main Spindle Bearing
  
## Product documents / software:

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048734/1188_S_aOR1TuJ.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/HT/HTA016ADB/GNP4L/bearingfinder_2d_pdf_fixed_HTA016ADB2FGNP4L_MJCNH33.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.