# NTN 71906CVUJ74 Angular Contact Ball Bearing - 30 mm Bore, Open, Phenolic Cage, High Precision - MROSupply.com

***NTN 71906CVUJ74 71 series single-row angular contact ball bearing, 30 mm straight bore, open design, phenolic cage, high carbon chrome steel construction. High-precision bearing for machine tool spindles and applications requiring accurate axial and radial load support.***



## Product details:

- Catalog number: 71906CVUJ74
- SKU: 831033
- Price: ***$328.24*** 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
- UPC: 3413520229764


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


## Product attributes;

  
- a (Load Center): 0.3937 in
  

  
- B (in): 0.3543
  

  
- Ball Material: Steel
  

  
- Ball material: Steel
  

  
- Bore Type: Round
  

  
- Bore type: Round
  

  
- Cage Material: Phenolic
  

  
- Cage material: Phenolic
  

  
- Cage Type: Stratified
  

  
- Cage type: Stratified
  

  
- Configuration: One
  

  
- Contact angle: 15 º
  

  
- D (in): 1.8504
  

  
- d (in): 1.1811
  

  
- D1: 1.6496 in
  

  
- d2: 1.3819 in
  

  
- D4: 1.7008 in
  

  
- D5: 0.0681 in
  

  
- Double Row Width: 0.7087 in
  

  
- Dynamic Load Rating: 1890 lbf
  

  
- Dynamic load rating: 1890 lbf
  

  
- E (in): 1.730
  

  
- Enclosure: Open
  

  
- I.D.: 30 mm
  

  
- Limiting Speed - Grease: 29000 RPM
  

  
- Limiting speed - grease: 29000 RPM
  

  
- Limiting Speed - Oil: 44000 RPM
  

  
- Limiting speed - oil: 44000 RPM
  

  
- Material: High carbon chrome steel
  

  
- O.D.: 47 mm
  

  
- Operating Temperature Range: -40 to 250 °F
  

  
- Operating temperature range: -40 to 250 ºF
  

  
- Precision: ISO class 4
  

  
- Preload: Light
  

  
- Quadruple Row Width: 1.4173 in
  

  
- r2 max: 0.0118 in
  

  
- r3 max: 0.0059 in
  

  
- Static Load Rating: 1418 lbf
  

  
- Static load rating: 1418 lbf
  

  
- Triple Row Width: 1.0630 in
  

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

- [Drawing](https://documents.mrosupply.com/product_documents/50/47/5047913/1184_S_MddXblc.png)
- [2D Sectional View PDF](https://documents.mrosupply.com/product_documents/71/71906CVUJ74/bearingfinder_2d_pdf_fixed_71906CVUJ74_S1XGYx2.pdf)
## Alternate products to `NTN 71906CVUJ74 Angular Contact Ball Bearing - 30 mm Bore, Open, Phenolic Cage, High Precision - MROSupply.com`:
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- [Nachi Bearing 7906CYU/GLP4 Precision Angular Contact Ball Bearing Single Universal 15](https://www.mrosupply.com/products/696430/as-markdown/)
- [SKF 71906 CDGA/P4A is a 30mm bore angular contact ball bearing with a 15° contact angle, super-precision tolerance class P4A, and a non-metallic cage. Designed for high-speed machine tool spindles and precision applications requiring accurate axial and radial load support.](https://www.mrosupply.com/products/2066371/as-markdown/)
- [NSK 7906CTRSULP4Y super-precision angular contact spindle bearing with 30 mm bore. Features a polyamide cage, universal matching (SU), and low-noise P4 precision. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.](https://www.mrosupply.com/products/5035417/as-markdown/)
- [FAG B71906C.T.P4S.UL super precision angular contact ball bearing with a 15° contact angle and 1 1/6" bore. This bearing features ISO P4 precision class and universal tandem arrangement for matched sets. Designed for high-speed and high-accuracy applications such as machine tool spindles.](https://www.mrosupply.com/products/2177608/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.