# NSK 7906A5TRSUMP4Y Super-Precision Angular Contact Spindle Bearing - 30 mm Bore, P4 Precision - MROSupply.com

***NSK 7906A5TRSUMP4Y super-precision angular contact spindle bearing with 30 mm bore. It features a 25-degree contact angle, polyamide cage, and universal matching for duplex mounting. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.***



## Product details:

- Catalog number: 7906A5TRSUMP4Y
- SKU: 5035412
- Price: ***$374.56*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- 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: 0.108 lb
- Returns: Yes


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



## Alternate products to `NSK 7906A5TRSUMP4Y Super-Precision Angular Contact Spindle Bearing - 30 mm Bore, P4 Precision - MROSupply.com`:
- [FAG B71906E.T.P4S.UM super precision angular contact ball bearing with 30mm bore, 47mm OD, and 25° contact angle. Features a machined brass cage and ISO P4 precision class. Designed for high-speed, high-accuracy applications such as machine tool spindles. This bearing offers superior running accuracy and rigidity.](https://www.mrosupply.com/products/2177612/as-markdown/)
- [NSK 7906A5TYNSUMP4Y super-precision angular contact spindle bearing with 30 mm bore. Features a polyamide cage, universal matching (SU), and ISO P4 tolerance. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.](https://www.mrosupply.com/products/5035413/as-markdown/)
- [NTN 71906HVUJ84 71 series single-row angular contact ball bearing with 30 mm straight bore and stamped steel cage. Designed for high-speed precision applications including machine tool spindles and high-rotational equipment.](https://www.mrosupply.com/products/5047224/as-markdown/)

## Product's reviews:
- Purchasing specialist - Great!!!
- Had what i needed - Found the bearing I needed. Reasonable price. Great phone support.
- Sales - Great Service !!




## 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.