# NTN 7203HTDB/GMP5 Angular Contact Ball Bearing - 17 mm Bore, Duplex Back-to-Back, Machined Brass Cage, P5 Precision - MROSupply.com

***NTN 7203HTDB/GMP5 is a 72 series duplex angular contact ball bearing with a 17 mm straight bore. It features a back-to-back (DB) arrangement and a machined brass cage. Designed for high-precision applications requiring axial rigidity and moment load capacity, this bearing is suitable for machine tool spindles and precision gearboxes.***



## Product details:

- Catalog number: 7203HTDB/GMP5
- SKU: 2172467
- Price: ***$864.64*** 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: 0.278 lb


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


## Product attributes;

  
- 2B: 0.9449 in
  

  
- B (in): 0.4724
  

  
- 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: 30 º
  

  
- d (in): 0.6693
  

  
- D (in): 1.5748
  

  
- d1: 0.9843 in
  

  
- D1: 1.2598 in
  

  
- D2: 1.4252 in
  

  
- da min: 0.8465 in
  

  
- Db max: 1.4764 in
  

  
- Dynamic load rating: 3100 lbf
  

  
- Dynamic Load Rating: 3100 lbf
  

  
- Enclosure: Open
  

  
- I.D.: 17 mm
  

  
- Limiting speed - grease: 19000 RPM
  

  
- Limiting Speed - Grease: 19000 RPM
  

  
- Limiting speed - oil: 26000 RPM
  

  
- Limiting Speed - Oil: 26000 RPM
  

  
- Material: High Carbon Chrome Steel
  

  
- O.D.: 40 mm
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Precision: ISO Class 5
  

  
- Preload: Medium
  

  
- r (in): 0.0236
  

  
- r1: 0.0118 in
  

  
- r1as max: 0.0118 in
  

  
- ras max: 0.0236 in
  

  
- Static load rating: 3700 lbf
  

  
- Static Load Rating: 3700 lbf
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/48/5048586/1163_S_AnqHLAk.png)






## 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.