# NSK 7918CTRDULP4Y Super-Precision Angular Contact Spindle Bearing - 90 mm Bore, P4 Precision, Universal Duplex - MROSupply.com

***NSK 7918CTRDULP4Y super-precision angular contact spindle bearing with 90 mm bore. It features a universal duplex (DU) matching set, low-noise P4 precision, and is designed for high-speed operation. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.***



## Product details:

- Catalog number: 7918CTRDULP4Y
- SKU: 5035478
- Price: ***$2,718.39*** 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: 2.468 lb
- Returns: Yes


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



## Alternate products to `NSK 7918CTRDULP4Y Super-Precision Angular Contact Spindle Bearing - 90 mm Bore, P4 Precision, Universal Duplex - MROSupply.com`:
- [SKF 71918 CD/P4ADGA is a 90mm bore super-precision angular contact ball bearing with a 25° contact angle. It features a polyamide cage and is designed for high-speed machine tool spindles and precision applications requiring high running accuracy.](https://www.mrosupply.com/products/312954/as-markdown/)
- [NTN 71918CVDUJ74 is a high-precision angular contact ball bearing with a 90 mm straight bore. It features an open enclosure and a phenolic cage, designed for universal duplex mounting in machine tool spindles and high-speed applications.](https://www.mrosupply.com/products/831118/as-markdown/)
- [FAG B71918C.T.P4S.DUL super precision angular contact ball bearing with 90mm bore, 125mm OD, and 18mm width. Features a 15° contact angle, universal tandem arrangement, and ISO P4 precision class. Designed for high-speed spindle applications requiring axial rigidity and minimal runout.](https://www.mrosupply.com/products/2177711/as-markdown/)

## Product's reviews:
- Purchasing specialist - Great!!!
- Sales - Great Service !!
- 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.