# NSK 7008A5TRDUMP4Y Super-Precision Angular Contact Ball Bearing - 40 mm Bore, 30° Contact, P4 Precision - MROSupply.com

***NSK 7008A5TRDUMP4Y Super-precision angular contact ball bearing with 40 mm bore. It features a 30° contact angle, universal duplex matching (DU), and ISO P4 precision tolerance. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers. Backed by NSK's precision-bearing engineering heritage.***



## Product details:

- Catalog number: 7008A5TRDUMP4Y
- SKU: 5034804
- Price: ***$827.27*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- 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: 0.836 lb
- Returns: Yes


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



## Alternate products to `NSK 7008A5TRDUMP4Y Super-Precision Angular Contact Ball Bearing - 40 mm Bore, 30° Contact, P4 Precision - MROSupply.com`:
- [SKF 7008 ACD/P4ADGB 40mm bore angular contact ball bearing with a 25° contact angle. Super-precision design with non-metallic cage for high-speed accuracy. Suitable for machine tool spindles and precision pumps.](https://www.mrosupply.com/products/313199/as-markdown/)
- [NTN 7008HVDUJ84 is a 70 series single-row angular contact ball bearing with a 40 mm straight bore. Open design with a phenolic cage. Universal flush ground duplex configuration allows mounting in tandem, back-to-back, or face-to-face arrangements. High carbon chrome steel construction for precision applications.](https://www.mrosupply.com/products/830764/as-markdown/)
- [FAG B7008E.T.P4S.DUM is a super precision angular contact ball bearing with a 40mm bore and 68mm outside diameter. It features a 25° contact angle, machined brass cage, and ISO P4 precision class. This bearing is designed for high-speed and high-accuracy applications such as machine tool spindles.](https://www.mrosupply.com/products/2177341/as-markdown/)

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




## 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.