# Koyo 6209 2RS Deep Groove Ball Bearing - 45 mm Bore, Double Sealed, Steel Cage - MROSupply.com

***Koyo 6209 2RS is a 62 series single-row deep groove ball bearing with a 45 mm bore, 85 mm OD, and 19 mm width. It features double rubber seals (2RS) for contamination protection and a steel cage. Suitable for electric motors, pumps, fans, and general industrial rotating equipment.***



## Product details:

- Catalog number: 6209 2RS
- SKU: 1494781
- Price: ***$45.86*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Koyo Bearing](https://www.mrosupply.com/brands/koyo-bearing/)
- Category: 
    - [Single Row Angular Contact Bearings](htts://www.mrosupply.com/bearings/ball-bearings/angular-contact-ball-bearings/single-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: 0.406 lb
- UPC: 60579006447


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


## Product attributes;

  
- Bore: 19
  

  
- I.D.: 45 mm
  

  
- O.D.: 85 mm
  

## Alternate products to `Koyo 6209 2RS Deep Groove Ball Bearing - 45 mm Bore, Double Sealed, Steel Cage - MROSupply.com`:
- [NACHI 6209-2NSE9C3 Deep Groove Ball Bearing Single Row 45X85X19MM Two Seals Steel Cage C3 Clearance](https://www.mrosupply.com/products/207825/as-markdown/)
- [SKF 6209 2RSJEM 45mm bore deep groove ball bearing, double sealed (NBR), C3 clearance, sheet metal cage. Designed for high-speed operation and moderate axial loads in electric motors, pumps, and general industrial machinery.](https://www.mrosupply.com/products/320669/as-markdown/)
- [SKF 6209-2RS1 is a 45mm bore deep groove ball bearing, double sealed with NBR rubber on both sides. It features a sheet metal cage and normal internal clearance. Suitable for electric motors, pumps, and general industrial applications.](https://www.mrosupply.com/products/319285/as-markdown/)
- [SKF 6209-2RS1/C3 is a 45mm bore deep groove ball bearing, double sealed with NBR rubber seals on both sides and C3 greater-than-normal clearance. The pressed steel cage provides reliable roller guidance. Suitable for electric motors, pumps, fans, and general industrial machinery.](https://www.mrosupply.com/products/320298/as-markdown/)
- [Koyo 6208 2RD is a 62 series single-row deep groove ball bearing with a 40 mm bore, 80 mm OD, and double rubber seals. Designed for general industrial rotating equipment such as electric motors, pumps, and fans.](https://www.mrosupply.com/products/1494771/as-markdown/)
- [Koyo 6209 2RD is a 62 series single-row deep groove ball bearing with a 45 mm bore, 85 mm OD, and straight bore. This light series bearing is designed for general industrial rotating equipment such as electric motors, pumps, and fans.](https://www.mrosupply.com/products/1494780/as-markdown/)
- [NSK 6209DDUC3 Deep groove ball bearing with 45 mm bore. It features double contact rubber seals (DDU) for effective contamination protection and C3 clearance for applications with thermal expansion or interference fits. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5033794/as-markdown/)
- [NSK 6209DDU sealed deep groove ball bearing with 45 mm bore and 85 mm OD. Double contact rubber seals (DDU) on both sides retain lubricant and exclude contaminants. Suitable for electric motors, pumps, fans, and general industrial applications.](https://www.mrosupply.com/products/5033793/as-markdown/)

## Product's reviews:
- Admin assistance - good product!
- Koyo roller bearing inner ring - Good product.
- Great service - great items at great price




## 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.