# NSK 51206 Thrust Ball Bearing - 30 mm Bore - MROSupply.com

***NSK 51206 thrust ball bearing with 30 mm bore. Designed for pure axial loads in vertical-shaft applications. Backed by NSK's precision-bearing engineering heritage.***



## Product details:

- Catalog number: 51206
- SKU: 5032834
- Price: ***$53.94*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- Category: 
    - [Ball Thrust Bearings](htts://www.mrosupply.com/bearings/ball-bearings/ball-thrust-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 0.308 lb
- Returns: Yes


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



## Alternate products to `NSK 51206 Thrust Ball Bearing - 30 mm Bore - MROSupply.com`:
- [SKF 51206 thrust ball bearing, 30mm bore, 52mm OD, with sheet metal cage. Designed for axial loads in one direction, it accommodates moderate speeds and is suitable for machine tool spindles, clutches, and general industrial applications.](https://www.mrosupply.com/products/320549/as-markdown/)
- [FAG 51206 single direction thrust ball bearing with 30mm bore and 52mm OD. Designed for axial loads in one direction, this bearing offers reliable performance in moderate-speed applications. Manufactured to ISO precision standards by Schaeffler.](https://www.mrosupply.com/products/2171510/as-markdown/)
- [NTN 51206 single direction thrust ball bearing with a 30 mm straight bore. Designed for axial loads in one direction, this bearing features a separable construction for easy mounting and dismounting. Suitable for vertical shaft applications in machine tools, gearboxes, and industrial machinery.](https://www.mrosupply.com/products/283298/as-markdown/)
- [Rollway 51206 BALL THRUST 51100-51400](https://www.mrosupply.com/products/2302292/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.