# NSK 2209K-2RSTN Self-Aligning Ball Bearing - 45 mm Bore, Tapered Bore 1:12, Double Sealed, Polyamide Cage - MROSupply.com

***NSK 2209K-2RSTN self-aligning ball bearing with 45 mm bore and 1:12 tapered bore for adapter sleeve mounting. Double rubber seals (2RS) provide contamination protection, and the polyamide cage (TN) ensures quiet operation. This bearing tolerates shaft misalignment and is suitable for conveyor head shafts, fans, and woodworking machinery.***



## Product details:

- Catalog number: 2209K-2RSTN
- SKU: 5030252
- Price: ***$213.53*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [NSK Bearings](https://www.mrosupply.com/brands/nsk-bearings/)
- Category: 
    - [Self-Aligning Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/self-aligning-ball-bearings/)
    - [Ball Bearings](htts://www.mrosupply.com/bearings/ball-bearings/)
    - [Bearings](htts://www.mrosupply.com/bearings/)
- Unit of measure: each
- Weight: 1.144 lb
- Returns: Yes


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



## Alternate products to `NSK 2209K-2RSTN Self-Aligning Ball Bearing - 45 mm Bore, Tapered Bore 1:12, Double Sealed, Polyamide Cage - MROSupply.com`:
- [SKF 2209 E-2RS1KTN9 self-aligning ball bearing, 45mm bore, double sealed (NBR), polyamide cage. Enhanced capacity design accommodates misalignment and shaft deflection. Suitable for applications with mounting inaccuracies.](https://www.mrosupply.com/products/319093/as-markdown/)
- [NTN 2209KEEG15 is a 22 series self-aligning ball bearing with a 45 mm straight bore. It features double contact seals and an improved geometry steel cage. Designed to accommodate misalignment in applications such as fans, conveyors, and textile machinery.](https://www.mrosupply.com/products/828975/as-markdown/)

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