# NSK 7917A5TYNDULP4 Super-Precision Angular Contact Spindle Bearing 85mm Bore P4 Precision - MROSupply.com

***NSK 7917A5TYNDULP4 super-precision angular contact spindle bearing with 85 mm bore, 25-degree contact angle, polyamide cage, and universal duplex matching for back-to-back or face-to-face mounting. Rated ISO P4 precision with low-noise characteristics. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.***



## Product details:

- Catalog number: 7917A5TYNDULP4
- SKU: 5035473
- Price: ***$2,012.55*** 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: 2.530 lb
- Returns: Yes


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



## Alternate products to `NSK 7917A5TYNDULP4 Super-Precision Angular Contact Spindle Bearing 85mm Bore P4 Precision - MROSupply.com`:
- [NTN 71917HVDUJ74 is a high-precision duplex angular contact ball bearing with an 85 mm straight bore. It features a phenolic cage and is open (unsealed). The universal flush ground design allows for mounting in any arrangement. Suitable for high-speed machine tool spindles and precision applications.](https://www.mrosupply.com/products/831117/as-markdown/)
- [SKF 71917 ACD/P4ADGA is an 85mm bore angular contact ball bearing with a 25° contact angle, super-precision tolerance class P4A, and a non-metallic cage. Designed for high-speed and high-accuracy applications such as machine tool spindles and precision spindles.](https://www.mrosupply.com/products/313176/as-markdown/)
- [NSK 7917A5TRDULP4Y super-precision angular contact spindle bearing with 85 mm bore, 25-degree contact angle, polyamide cage, and universal duplex matching for back-to-back or face-to-face mounting. Rated ISO P4 precision with low-noise characteristics. Engineered for high-speed precision spindle applications such as machining centers, grinders, and turning centers.](https://www.mrosupply.com/products/5035471/as-markdown/)
- [FAG B71917E.T.P4S.DUL super precision angular contact ball bearing with 85mm bore, 120mm OD, and 25° contact angle. Features universal tandem arrangement for paired mounting, ISO P4 precision class, and optimized design for high-speed spindle applications. Suitable for machine tool spindles and precision equipment.](https://www.mrosupply.com/products/2177708/as-markdown/)

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




## 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.